> The site uses a form feed login and I tried 
capturing 
> the login with httrack but it didn't seem to do the 
> trick. The page also relies heavily on server side 
> scripting. I included all files *.* in my scan rules 
> and that did not help.

Did you use the "capture URL" feature? ("add 
url"/"capture url")
If it is still not working, might be due to cookies/js 
tricks