You can't convert Stars to Wii Points yet, but it's supposed to be coming soon (no date so far).
More Wii Questions for UK owners...
Miscellaneous Forums/General Discussion/More Wii Questions for UK owners...The forum is locked. These are the original blitzbasic.com forums, kept so they can still be read. No new topics, replies or edits can be made here. To join in, head over to the Blitz3D+ forums.