Restore MySQL DB from its folder
Assuming default data directory setup (no partitioning etc), you follow these steps:

1) Stop the mysql server
2) Make a backup of the current mysql/data directory
3) Copy all the files and folders from the mysql/data backup directory into the active data directory
4) Restart mysql


This should let you restore the database to the point-in-time of your backup copy. The mysql-bin files aren't necessary for a recovery, but ibdata* files are (assuming innodb tables). If myisam, you should have .MYI and MYD files for each tablespace as well as the .frm files.

Hope this helps