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if you are using vanilla 2.1
you can help with this spreadsheet.
by stating whether the plugin (and version number of plugin or theme) works in 2.1 or not.
a theme spreadsheet would also be in order.
you don't have to be a rocket scientist to add to this thread. either it works or it doesn't.
you could also put an explanatory description - of what part of the plugin doesn't work.
on a sidenote:
As far as I know - all my plugins work in vanilla 2.1 (if they don't let me know and I will either remove the plugin or fix it).
did you ask a question and use vanilla 2.1 but do not have a drop of altruism to participate here? (rhetorical question).
I may not provide the completed solution you might desire, but I do try to provide honest suggestions to help you solve your issue.