Can you tell us exactly how did you messed up the module? Do you get any specific errors, that might help us determine the cause of the problem and help you resolve it? Any screenshots will be helpful as well.
However if you still want to reinstall the module, you can remove the Events entry from the SystemConfig:
<add version="5.0 2523" name="Events" />
Then if you can build and restart the website the module will be reinstalled. You may also remove all EventConfig's you find in the the Configuration directory.
the Telerik team
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