sorry i havnt bin around these neck of the woods lately!
there does NOT exist a "program" that u can use to overclock a cpu... almost all overclocking happens inside the system BIOS.
most older motherboards built prior to 2007 dont have overclocking protection and if u screw up you will be left with a burnt up mobo and cpu.....
some of the newer higher priced boards out now have overclock friendly features and UIs.... that make OCing safer...
General way to go about OCing your rig is to use
www.google.comuse a search term such as "overclocking ASUS K8T with Athlon 64 3200+" for example and a bunch of peoples documenting their successes and failures with that particular setup will come out in the search results..... many people post acutall step by step instructions and detailed info with pictures.....
of course you would enter your motherboard model and cpu type in the search string instead of the one i used above!
generally speaking...... why re-invent the wheel when someone else already has!
good luck.. oh..... most importantly make sure you have one of the BEST cpu cooling devices out there before u go messing around with OCing.....