I stopped using Ad-Aware a while back but it is still one of the most reliable adware removal tools there is. Looks like they are working on a new release.
This is Beta software so it is to be used with caution at your own risk.
Ad-Aware 2008 BETA Win XP/Vista
Redesigned Engine – Benefit from superior program flexibility and more accurate scanning methods with all-new program architecture.
Improved Code Sequence Identification (CSI) Technology – Boost your privacy protection with precise detection of embedded malware, including known and emerging threats.
Incremental Definition File Updates – Save precious time and resources with smaller update files resulting in faster download times.
TrackSweep – Control privacy by erasing tracks left behind while surfing the Web on Internet Explorer, Firefox, and Opera, with one easy click.
Multiple Browser Support – Choose Internet Explorer, Firefox, or Opera with expanded browser support.
New Straightforward User Interface – Effortlessly maneuver the complexities of malware detection and removal with our new user-friendly interface.
User-Controlled Spyware Removal – Decide for yourself what to delete from your system and what to keep.
Extensive Detection Database – Stay protected with regular updates from the extensive library of identified and analyzed spyware.
System Restore Point – Easily revert back to your clean system to recover from a spyware attack.
Limitations: Scan and remove only, must purchase for on live protection.
Requires this Instalation key: 6DB04-PR6TJ-LN6N7-SGL2L-2N337 for the beta test
If you would like to sign up directly for the Beta program Go Here