Ok, as long as you can boot into farmanager then just go to:
Flash
then
TPA.
Be careful when you dig around. You can make a back up of this but just copying the TPA to your hard drive.
You should be able to find your feet from now on.
Look through all the forums for your answers as there's no point in people taking the time to post tutorials if there not going to be used.
Good Luck
Lavondys