I downloaded uTorrent for OS X, and it will not execute/run. The icon pops up, and immediately quits. I figured maybe I downloaded a 10.5 BETA, so I downloaded the older BETA, and the same thing happened.
Are you running Tiger? Unfortunately uTorrent's only available for Leopard. 🙁 I had the same error before I upgraded end of last year.
Very happy with it btw compared to Azureus, it's not nearly as bad a system hog.