I didn't see if listed on your last log. Post another. See if there is an uninstaller in it's directory. (Should be like C:\Program Files\Web Rebates)
Run this tool also..and check for any other leftovers...
Download ewido security suite from here…
http://www.ewido.net/en/download/
Update it’s database from here..
http://www.ewido.net/en/download/updates/
Run a scan and let it clean the PC. Post a new hijackthis log when complete