I finally found out why my host doesn't upgrade from 3.23.58: Plesk CP breaks with 4.x.
I'd like to stay with my current host, so they gave me two options:
1) upgrade Plesk via a trusted 3rd party hack
2) run another instance of 4.x
Both require compilation and Linux mumbo-jumbo
I've never compiled anything before. Does anyone know of any good, concise tutorials on how to get started?
Thanks