cant uninstall opera

[gianthobbit]

I installed a Opera build 9.5 w/ google gears to a 6.5 rom that did not have it pre installed (mighty and juicy's forgot the name). Here is a link to where i downloaded it: http://www.opera.com/mobile/download/ . Its really buggy, crashes, changes my keyboard keeps changing so I wonted to down grade and use a more stable service, but it wont uninstall, windows removed it form the list but i cant install a new version. Please advise.