I've mined on this server for about 30 hours with 270 Mhash/s a few days ago. I didn't receive any bitcoins at all and Luke-Jr hasn't replied to my private messages (although he has been online on the forums several times).
I think this server isn't trustworthy at all...
No block was found, so you dont get paid, its not Pay per share on this server, its proportional, pool is trustworthy, your just expecting the wrong thing from a small pool whos luck isnt the best at this moment.