If you make a deposit at PokerHost BEFORE you win any freeroll dollars everything is fine
It really is pointless to play their freerolls without making a deposit first.
If you make a deposit Before any winnings the winnings are yours no strings
If you have not made a deposit you have to rake haands for every dollar you win, anything you win with those winnings you have to rake hands for and rake does not start to accumulate until you have made a deposit.
Even if you make a deposit and turn around and withdraw it your covered.