ASP: FCKeditor Opera compability issues and IE rendering

Hi I have som problems, and I suspect it’s me being stupid:

I’m trying to combine two scripts, one fileupload script and fckeditor. I’m having som trouble getting the fckeditor to work, and the three browsers i test it in confuses me with different errors:

Firefox: Displays like i expect it to
Opera: Fails the compabilityscript, which is kind of surprising. Displays a textarea, which is what the script should do if it fails the IsCompatible() function.
IExplore 7: Does nothing right of course. It passes the compability-test, but fails to render… Shows nothing, although the source shows that correct(?) syntax is there.

My guess is that it’s this script that’s causing opera’s problems:

	
Private Function IsCompatible()

		Dim sAgent
		sAgent = Request.ServerVariables("HTTP_USER_AGENT")

		Dim iVersion

		If InStr(sAgent, "MSIE") > 0 AND InStr(sAgent, "mac") <= 0  AND InStr(sAgent, "Opera") <= 0 Then
			iVersion = CInt( ToNumericFormat( Mid(sAgent, InStr(sAgent, "MSIE") + 5, 3) ) )
			IsCompatible = ( iVersion >= 5.5 )
		ElseIf InStr(sAgent, "Gecko/") > 0 Then
			iVersion = CLng( Mid( sAgent, InStr( sAgent, "Gecko/" ) + 6, 8 ) )
			IsCompatible = ( iVersion >= 20030210 )
		Else
			IsCompatible = False
		End If

	End Function

With IE, i don’t know, there’s no reason why it shouldn’t work as far as i know
This is the URL:

http://amp-up.no/blogg/saveany.asp

The upload script doesn’t work yet and i know about the broken image-link, so no need to focus on that.

Any help would be much appreciated!