problems after installing on new hard-drive

I recently had a hard-drive go down in which I was running os x 10.2.x. I do not remember exactly what version of mysql, php etc. I had on it. I had a small mysql database with some php code that worked fine. Now that I have my new drive I have put php 4.3.2, phpmyadmin 2.5.7-pl1, and mysql 4.0 (for os x 10.3.4). One error was when trying to connect to server which is my machine in this case. But when I ran that same code using an include, it worked fine. After copying the code from my include file into where the error was it worked fine as well. And yep it was definetly the same code. Also, after hitting my submit, there is no data being passed via my post. It also gives me an Warning: Invalid argument supplied for foreach(). As I said all this code worked fine on my os x 10.2.x. Any help would be appreciated, Doug