If you are getting an error when trying to use the tool or the interfaces in the tool are not showing correctly there could be a couple of problems. The first thing you should try is deleting the cache file to see if that helps with things, here is a link on this:
If this does not work for you then there may be a corruption of the config, here is a link for the steps in dealing with that if deleting the cache file does not solve the problem:
To sales356151, is this the type of problem you are experiencing or are you experiencing a problem after implementing the tool on your site? If you could post a screen shot that may help clear things up.