Alex, Thank you very much. It seems that if you modify any of a bundle the bundle does not update on a new version of textmate which I had not realised.
I actually thought this behavior has changed.
I knew this was the case previously, but I thought now changes to bundles get saved in some delta format in your ~/Library/App Support/ TextMate/... directory.
Isn't that how it works now? If so, isn't that supposed to enable you to make a change/tweak in a bundle w/o overriding the entire bundle?
-steve