Hi, Xavier! I don´t know exact if this is a bug, but...

You remember about some problems I have to download 
complex aspx pages? Well, I tried to download (download 
file option en httrack) a image with the link as 
<http://site.com/image.aspx?image=123&media=cd-ht&type=gif>
(I cannot put the correct address cause is a paid site)
I put the mime config aspx=image/gif (and octet stream), 
tried with and without the option "use http 1.0" and ALL 
the browser identity. ALWAYS I get a file with &00 
substituted with &20, corrupted. I used the same link in 
flashget download manager with no problem with default 
config.

This is a bug???
I thanks any help...