Did you install the Online or Offline version of Java? Offline is always the best way to install Java. Certainly you did well uninstalling previous versions.

Otherwise, uninstall java again, and install this slightly older version: Java 1.5 (take the JRE).

Also, before you open LW next, do this: Try deleting your LW Preferences folder whilst LW is closed; instructions here: Point #2 & 3 in Fixes for Limewire (sample image included at bottom of page.) If that doesn't work, look at other options such as changing compatibility mode of LW. And also uninstalling LW using the Start menu>Programs>LW>Uninstall. Then downloading this version: Download ‘Other’ version & simply unzip & use!