Since you didn't specify if you are talking about ProHosting.com or Free.ProHosting.com, I will assume Free.ProHosting.com. Besides, if you had a problem with ProHosting.com, you could ask them for assistance.

Have you tried reading the Unoffical free.prohosting.com FAQ?
I haven't but then I'm not the one with the problem. ;)

You might also want to check the Unoffical Free ProHosting Support Forums.