I have 6 Opera entries in Tools > Uninstall.
I don't know if this is a bug or not since it's beta?
Should I delete the 5 older versions of Opera or just wait on the final release?
That is very strange. Make sure you don't have umpteen different Opera versions installed into their own unique folders. For instance did Opera install each version in a specific folder like:
C:\Program Files\Opera 9.01
C:\Program Files\Opera 9.02
C:\Program Files\Opera 9.10