When the instructions say:
1. Backup files and database ( always a good idea ).
2. Enable De-Activation Safeguards ( as instructed above ).
3. Login via FTP, and delete the entire `/wp-content/plugins/s2member` directory.
You can leave `/plugins/s2member-logs/` and `/plugins/s2member-files/`.
4. Now upload the latest `/s2member` folder to `/wp-content/plugins/`.
5. That's it. All existing options will remain intact.
* If you're running s2Member Pro, repeat steps #3 and #4 for the /s2member-pro directory.
Where do i find the s2member-pro file to upload manually?