I will tell you that I tried to put a slotted T-bird in that very same motherboard and did not even get a POST. From what I understand, the KX-133 chipset does not do well with T-bird class processors. You may have to downgrade your motherboard to the AMD Irongate chipset as this has full support for the T-birds.
This option really does not make sense however as if you upgrading, you want newer stuff, not older stuff. You may have to fork out the cash to get a new motherboard, chip, and HSF. This however still is not that bad in cost, if you do your shopping, you could do the whole thing for under $200.00 US$.
Let us know what you end up doing.
Check out my rig:
<A HREF="http://www.anandtech.com/mysystemrig.html?id=3737" target="_new">http://www.anandtech.com/mysystemrig.html?id=3737</A>