It also has the same problem with any attachments on the 
same forum.The attachment links which can be jpg,gif,pdf 
etc look like this.

*/forum/attachment.php?s=&postid=238695

Now when the are downloaded,HTTrack saves them all as htm 
files but if I manually change the extension they work 
ok.Is there any way for the right extensions to be added 
or do I have to do it manually?
Appreciate any help.