Fallout: New Vegas Discussion
Also, someone has just ported the FO3 mod manager to New Vegas over at the Fallout New Vegas Nexus. Someone else is working on a full-fledged NV manager, but for now it does the job. It has options for archiveinvalidated.
Try this. It supposedly removed the need for ArchiveInvalidated to be modified by faking an already disabled one.
* Updated game trainers and cheats daily
* Get notified when new cheats are added
* Request which games get new trainers
* Priority support with any problem