lemme see you ./configure line
mine looks something like this
./configure --prefix=/usr/local/apache --enable-module=so --enable-mods-shared=most
Also, if you install like this, you need to do a search for the libphp5.so module, and you need to make sure that the php5 module is in the /usr/local/apache/modules directory.
but then you need to change the ownerships to this libphp5 module.
lemme know if you still need help. i have been working on getting mysql, php, and apache to work on linux (fc4) for a few days now, with about 10 rebuilds. once i get done, i am going to post my documentation (instructions) online, because all of the instructions i find are ambiguous, and none have worked right.
post what you have and if you are still having trouble.