As I wrote yesterday [1]:
Doing a checkout of a default bundle may require an updated Support folder, and sometimes an updated Dialog plug-in -- so for casual users, it is not recommended to update the default bundles (if they do, they need to also checkout Support and PlugIns, and they MUST keep things in sync and up-to-date!)
[1] http://lists.macromates.com/pipermail/textmate/2007-April/ 019178.html
Thanks for the reply - just joined the list this evening and hadn't seen this in the archives.
best,
Jim