request for help: New User Registration

Im getting hammered with sweatshop spammers going around captcha etc and registering.  I have turned on manual user activation, so I get an activation email for each new user.

Can you please point me at the code that generates the "new member activation" email message?  I cant seem to find it.  I would like to try to change the link included in the email message to point at
http://forumdomain/forum/register.asp?FPN=0&PF=PROFILENUMBER&M=A
instead of pointing directly at the member activation page.  I want to look at the prospective member's registration info before deciding to activate, and this would alleviate having to click through several pages to get the member's profile details by providing the correct link right in the email message.

If there is an easier way to do this (I usually try to skin the cat starting at the wrong end!!), please advise.

TIA!

I modified the registration.asp as follows:

Modified line 1047 to add "& _" at end:

vbCrLf & vbCrLf & strForumPath & "admin_activate.asp?USD=" & lngUserProfileID & _

Added following lines after 1047:

vbCrLf & vbCrLf & "To view the domain info for the registrants IP address, click here: " & _
vbCrLf & "http://www.dnsstuff.com/tools/ipall?ip=" & getIP() & _
vbCrLf & vbCrLf & "To view details of the new registrant *before* approving, click here:" & _
vbCrLf & strForumPath & "register.asp?FPN=0" & chr(38) & "PF=" & lngUserProfileID & chr(38) & "M=A"

I  think this is a pretty good mod