> I've executed htttrack and it goes thru all the pages and 
> parses the javascript but it does not execute it, so the 
> webtrends-sdc server does not receive the petition.

It depends on the javascript complexity - if no URL were 
found, that's because httrack could not "understand" where 
they were. There is no real javascrpt execution, only a 
(rather basic) code analysis.