How do i turn off php safe mode, it needs to be off for my zen cart installation

u can't. On the future u will be able to for a fee. Zencart works fine with safe mode on too...

Thanks alot : ). And i have one more question. Can zen-cart automatically change inventory when something is successfully ordered?

hmm i dont know about that. ive never really continued using zencart. but i bet someone else on this forum knows, or if you check out the zencart site.