You can get most of your questions answered via the Plesk Documentation:
http://www.swsoft.com/en/products/plesk/docs/
FTP details should be ftp.yourdomain.com, with the user/password you use on freepgs (unless you changed it on Plesk).
From what I understand, the MySQL 5 server is staying after FreePgs main goes down, and localhost will be gone, however, I would recommend you move your databases to Plesk to manange them. There is not currently a PMA for MySQL5 on the Plesk server, you can continue using the one on the main freepgs server.
Your url on plesk will be either your domain, or username.plesk.lvcs.net, from what I've seen, and this should be included only if you don't have ANY domains of your own.(Wow, three questions answered at once!)
Configuring your domain: Could you please be more specific?
Any other questions feel free to ask.
http://www.swsoft.com/en/products/plesk/docs/
FTP details should be ftp.yourdomain.com, with the user/password you use on freepgs (unless you changed it on Plesk).
From what I understand, the MySQL 5 server is staying after FreePgs main goes down, and localhost will be gone, however, I would recommend you move your databases to Plesk to manange them. There is not currently a PMA for MySQL5 on the Plesk server, you can continue using the one on the main freepgs server.
Your url on plesk will be either your domain, or username.plesk.lvcs.net, from what I've seen, and this should be included only if you don't have ANY domains of your own.(Wow, three questions answered at once!)
Configuring your domain: Could you please be more specific?
Any other questions feel free to ask.