I've been running CS3 Extended (XPPro, SP2) with the latest upgrades of Bridge, CS3 and ACR from Adobe. While Bridge seemed OK at first it developed more and more frequent freeze ups, inability to Escape out of the slide show, and crashing after selecting more than 3 images at a time in Bridge.
I tried trashing the Preferences files in Bridge and CS3, with little benefit (Bridge worked once and then crashed again). I did "repair" re-installs, and finally a complete de-install/reinstall. Still no improvement.
Yesterday I decided to upgrade the driver for my old nVidia GeForce 3 video card, despite recollections of disasters after other video driver upgrades. Voila! My CS3 and Bridge now run as they are supposed to!
So, if anybody has been having Bridge crashes, you might look into upgrading your video drivers.