[nighthalk]

With friends like that you don't need enemies.

First I would suggest changing all your passwords to a random string of upper and lower case and numerical strings.

Remember not to make your passwords your favorite color or sons name etc.
Second I would find a new web host as it don't sound like things are really secure.
Plus if he hacked you before he could of uploaded a php shell of some sort.

If this is your personal server I would suggest doing a few things to apache.
Install mod_security
Install mod_evasive

I would also suggest at least running some sort of firewall.
I could go on and on but I don't know what your set up is.