I'm afraid I don't understand you very good, ¿you want to say that uninstalling kunena you could use multiplecheckbox whit ie and a rocketheme template?
The problem it's that I don't have kunena, so this is not my problem... have you another idea?
This is the url
casaprivee.com/unete/registrate.html

thanks a lot

No, lol.

My sollution was unistalling an IE8 plugin.
I was using this IE8 plugin to solve another problem i had with Kunena 1.6.
So, if you are using an IE8 plugin running, i suggest you turn it off.