Comon dawg, I've had the same stuff on my site the last 2 weeks, It only ran a front page till i get my forums up, Aka.... .PHP files. and its been the same and i try it today and it don't work.. So i don't know
VPmase is right, this is caused by a PHP version error, not a htaccess error, once again, this is the 4th post i've seen like this today, please use the search feature before posting!