WebWiz RSS Funky

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   I use a standard XML script (pasted below) to display latest topics on my homepage using the webwiz forum RSS feed.  However, every so often someone posts a message I get the following error.  I never seem to have this problem with other RSS feeds, just randomly with WebWiz Forum feeds.

So my question is, can extra code be added to the RSS_topic_feed.asp to validate and replace invalid characters with proper ones for proper RSS support when a post happens with an invalid character?  Unfortunately I don't know which characters are causing the error so I am not expecting a miracle just some hope that someone will check into this.

BTW, this is a great script to use if you want to display content from the webwiz RSS feeds... 

Here is the error I randomly receive with the standard code... 

Error:
An invalid character was found in text content. Error has occured while trying to process www.myXXforum.com/forum/RSS_topic_feed.asp
Please contact web-master

Script:
<%
Response.Expires = -1 
' =========== RSS2HTML.ASP for ASP/ASP.NET ==========
' copyright 2005-2007 (c) www.Bytescout.com
' version 1.22, 25 April 2007 
' ===============================================
' ##############################################################
' ####### CHECK OUR COMMERCIAL PRODUCTS FOR ASP/ASP.NET: #######
' SWF Scout [ http://bytescout.com/swfscout.html ]- create, read, modify flash movies (SWF)
' PDFDoc Scout [ http://bytescout.com/pdfdocscout.html ]- generate PDF documents with security options (PDF)
' ##############################################################
' =========== configuration =====================
' ##### URL to RSS Feed to display #########
URLToRSS = "http://bytescout.com/blog/feed"
' ##### max number of displayed items #####
MaxNumberOfItems = 7
' ##### Main template constants
MainTemplateHeader = "<table>"
MainTemplateFooter = "</table>"
' ##### 
' ######################################
Keyword1 = "" ' Keyword1 = "tech" - set non-empty keyword value to filter by this keyword
Keyword2 = "" ' Keyword1 = "win" - set non-empty keyword value to filter by this 2nd keyword too
' #################################
' ##### Item template.
' ##### {LINK} will be replaced with item link
' ##### {TITLE} will be replaced with item title
' ##### {DESCRIPTION} will be replaced with item description
' ##### {DATE} will be replaced with item date and time
' ##### {COMMENTSLINK} will be replaced with link to comments (if you use RSS feed from blog)
' ##### {CATEGORY} will be replaced with item category
ItemTemplate = "<tr><td><strong>{DATE}</strong><br/><strong>{CATEGORY}<br/></strong><a href=" & """{LINK}""" & ">{TITLE}</a><BR>{DESCRIPTION}</td></tr>"
' ##### Error message that will be displayed if not items etc
ErrorMessage = "Error has occured while trying to process " &URLToRSS & "<BR>Please contact web-master"
' ================================================
Set xmlHttp = Server.CreateObject("MSXML2.XMLHTTP.3.0")
xmlHttp.Open "Get", URLToRSS, false
xmlHttp.Send()
RSSXML = xmlHttp.ResponseText
Set xmlDOM = Server.CreateObject("MSXML2.DomDocument.3.0")
xmlDOM.async = False
xmlDOM.validateOnParse = False
xmlDom.resolveExternals = False
If not xmlDOM.LoadXml(RSSXML) Then
ErrorMessage = "Can not load XML:" & vbCRLF & xmlDOM.parseError.reason & vbCRLF & ErrorMessage
End If 
Set xmlHttp = Nothing ' clear HTTP object
Set RSSItems = xmlDOM.getElementsByTagName("item") ' collect all "items" from downloaded RSS
RSSItemsCount = RSSItems.Length-1
' if not <item>..</item> entries, then try to get <entry>..</entry>
if RSSItemsCount = -1 Then 
Set RSSItems = xmlDOM.getElementsByTagName("entry") ' collect all "entry" (atom format) from downloaded RSS
RSSItemsCount = RSSItems.Length-1
End If 
Set xmlDOM = Nothing ' clear XML

' writing Header
if RSSItemsCount > 0 then 
Response.Write MainTemplateHeader
End If
j = -1
For i = 0 To RSSItemsCount
Set RSSItem = RSSItems.Item(i)
for each child in RSSItem.childNodes
Select case lcase(child.nodeName)
case "title"
RSStitle = child.text
case "link"
If RSSLink = "" Then
If child.Attributes.length>0 Then
RSSLink = child.GetAttribute("href")
if (RSSLink <> "") Then
if child.GetAttribute("rel") <> "alternate" Then
RSSLink = ""
End If
End If
End If ' if has attributes 
If RSSLink = "" Then
RSSlink = child.text
End If
End If
case "description"
RSSdescription = child.text
case "content" ' atom format
RSSdescription = child.text
case "published"' atom format
RSSDate = child.text
case "pubdate"
RSSDate = child.text
case "comments"
RSSCommentsLink = child.text
case "category"
Set CategoryItems = RSSItem.getElementsByTagName("category")
RSSCategory = ""
for each categoryitem in CategoryItems
if RSSCategory <> "" Then 
RSSCategory = RSSCategory & ", "
End If

RSSCategory = RSSCategory & categoryitem.text
Next
End Select
next
' now check filter
If (InStr(RSSTitle,Keyword1)>0) or (InStr(RSSTitle,Keyword2)>0) or (InStr(RSSDescription,Keyword1)>0) or (InStr(RSSDescription,Keyword2)>0) then
j = J+1
if J<MaxNumberOfItems then 
ItemContent = Replace(ItemTemplate,"{LINK}",RSSlink)
ItemContent = Replace(ItemContent,"{TITLE}",RSSTitle)
ItemContent = Replace(ItemContent,"{DATE}",RSSDate)
ItemContent = Replace(ItemContent,"{COMMENTSLINK}",RSSCommentsLink)
ItemContent = Replace(ItemContent,"{CATEGORY}",RSSCategory)
Response.Write Replace(ItemContent,"{DESCRIPTION}",RSSDescription)
ItemContent = ""
End if
End If 
Next
' writing Footer
if RSSItemsCount > 0 then 
Response.Write MainTemplateFooter
else 
Response.Write ErrorMessage
End If
' Response.End ' uncomment this for use in on-the-fly output
%>