I think the SVN of clearcase plugin might work now but I don't have clearcase to test it on, nor have I really used it.
Anyone else out there use clearcase? Want to give the version of ClearCasePlugin in SVN a try?
I realize there is still an open ticket about the "browse button" broken because it is restricting to directories.
I can't really fix that since I can't test it.
Clearcase needs some love, from someone who uses clearcase.