Fedora builds should work.
????? WT? "bleeped"
then T3RM1NVT0R YOU
but the current fedora glib rpm on YOUR cent 5.6 box
and see what happens !!!!!!
That IS NOT HOW IT WORKS !!!
blue_print as unSpawn pointed out -- READ the centOS WARNINGS very carefully , and a few times !
but building the Apache "LAMP" stack from source would be the best use of time
it is very easy to do and YOU will learn a LOT
I normally recommend that people build the stack from source and install everything manually 6 to 12 times before using the prebuilt rpm's and deb files
the rpm's will only shave 30 Min. to an hour off the install and config time .