it has a piece of metal attached to the top of the CPU. When I got my PC it had a Pentium 3 in it but someone gave me a Celeron and I had to get a new fan to fit it because it was a lot thicker and the old fan/heatsink wouldn't fit over it. When looking at the picture of the fan Slaymate listed it looks like my older heatsinks did with the edge of it coming up because of the edge of the socket (right side in the picture on newegg).
I may just buy the thermal paste Slaymate suggested and live with a loud PC for a little while longer. I am probably going to build a new PC some time next year so I dont want to spend too much on just tweaking this old PC. I may also try to rig up an old fan I have to the heatsink I have now.
But...there is still the issue of applying the paste to the CPU. Is isopropryl alcohol also called rubbing alcohol? Based on the info I gave above should I just do the rice grain in the middle or try to spread it out. Again, it has a piece of metal attached to the top of the CPU.