The "normal" one is called "reference" in the download section:
http://sites.google.com/site/androidport/downloads
The overclock is set in the startup.txt. You can find info on it in the FAQ here
http://sites.google.com/site/androidport/faq (near the bottom).
However I had problems with both and ultimately ended up having to install it all manually. My post about it with instructions is here:
http://forum.ppcgeeks.com/showpost.p...postcount=1207
Good luck!