I installed fedora core 4 using the fedora core 4 perfect setup. The original php version was 5.05 and the one that reaplaced it was 5.04.
My cousin installed php 5.0.4 by source. 5.04 version was installed while 5.05 version was already present.
My cousin removed 5.04 using the rm command on the php directory
We then used apt-get to finish the uninstallation of 5.05.
To install 5.04 we then used yum.
Thanks for the help,