Just to be sure unhide your files.
You are searching for "*.b" (without the quotes)?
From other topics:
FIND GAME SAVE FILES WINDOWS 7 64 BIT:
The User Files maybe located at a different location. Check all the following locations:
1. C:\Users\your username\Documents\GTA San Andreas User Files
2. C:\Users\Public\Public Documents\GTA San Andreas User Files
3. C:\Program Files\Rockstar Games\GTA San Andreas\data\
If a Windows User account name has a period (.) in it, then it becomes impossible for you to save the game you have to create a new user account without a period. This is an Olde Game, many questions can be answered with the FORUM TOOL: SEARCH. Always SEARCH before making a ‘new’ topic.
Note: Version 1 games haven't been sold at retail for years. Downgrading a V2 to V1 is still a V2 game. The Official Patch V1.01 isn't needed for the V2 game, as it has already been applied.
If you have Warez/Torrent/Pirated game there is no telling how it was modified and your on your own with it.
You may need to Uninstall and reinstall the game.
You may need to start over, not using your previous saves. This post has been edited by lil weasel on Tuesday, May 8 2012, 20:41