> Please help me! I need some type of makro, which
> logs me in the site and than fetches the URLs. Or
> something which records the whole login-procedure
> (which is form-based if you look at the site and I
> need httrack to "type" the username/password in

can't be done with httrack.
You can buy Macro Express and program a macro to open browser, open the login
page, open winhttrack, get the capture url proxy address, put it into browser
box, send the form, wait for the httrack acknowledgement, bring browser back
and restore the proxy, bring winhttrack back and start the update. I could do
it about three days. If you don't know macro express, estimate three weeks.