Installing OSX on anything but a mac breaks its eula, therefore counts as piracy. MDL is not a warez site, I suggest you look up some hackintosh forums instead.
Only way to solve your problem is to buy stronger processor. I recommend at least Intel Core i3 Series.
Went down this road a long while back with an old T60 for this very reason - can't recall which CPU I slapped in, but was no biggie, on that lappie anyway... besides it probably needs a good clean out anyway...
Thanks guys! Unfortunately we don't have any budget to buy a new machine. I guess I would be able to do it after graduating college, getting a job first.