I updated my Playbook to the new 2.0 OS and was prompted to update the Bridge on my 9800 also somewhere in the mix. I only was able to download what appears to be half a bars worth and the download locked up. I can't download it again as the 'DOWNLOAD' option is no longer there - I assume the software thinks it's on my BB - but whenever I go to use the Bridge it asks me if I want to download the new update.
You can find Blackberry Bridge in BlackBerry App World. Here is the link:
Free BlackBerry Bridge - Download BlackBerry Bridge - Free Apps from BlackBerry App World
Make sure you go to device and applications any remove any traces of BlackBerry Bridge before re installing.