Why wont this code work

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   <%
     If lngAuthorNumOfPosts < 50 Then
         Response.Write("<img src=""forum_images/0_star_rating.gif"" align=""center"">")        
     Elseif lngAuthorNumOfPosts >= 150 Then
         Response.Write("<img src=""forum_images/1_star_rating.gif"" align=""center"">")     
     Elseif lngAuthorNumOfPosts >= 250 Then
         Response.Write("<img src=""forum_images/2_star_rating.gif"" align=""center"">") 
     Elseif lngAuthorNumOfPosts >= 400 Then
         Response.Write("<img src=""forum_images/3_star_rating.gif"" align=""center"">") 
     Elseif lngAuthorNumOfPosts >= 500 Then
         Response.Write("<img src=""forum_images/4_star_rating.gif"" align=""center"">")   
     Else
         Response.Write("<img src=""forum_images/5_star_rating.gif"" align=""center"">")               
     End If
%>

It just shows the 0_star_rating.gif for everyone.