just HOW did you install lamp ??
all the software is in the default repo AND on the install dvd
did you use the recommended( by fedora and not me ) way with yum
--- please check "yum grouplist" to check the spelling . ---
yum groupinstall "Web Server"
and as above have you set up the httpd.conf & my.ini, and php.ini ????
also fedora is not a good choice for a server
in 12 to 13 months there will NEVER be any more support for fedora 14 and fedora 16( the current at that time) will need to be installed .