Important Problem Uninstalling

Hi, I tried to install kunena and got an error about joomla version .14 than was not up to date
I upgraded Joomla uninstalled kunena and now I get an error that says that there where an old version on kunena and the setup can't continue.
What do I have to delete to get it uninstalled (I have no tables created)
Thanks

The error is
Installer detected failed or interrupted installation attempt!
An incomplete installation of Kunena 1.6.1 build 3858 was found in your system. This means that the installation either failed or was interrupted.

Hello,

try to look it you have directories created like : administrator/components/com_kunena/ and components/com_kunena/, if these directories exists delete them and re-try the installation

It's what I Did without success it seems that there is others residuals!!!

Try to clean the directory joomla/tmp

The Kunena installation procedure creates files in ../administrator/components/com_kunena folder and in ../components/com_kunena folder.

The Kunena installation procedure also creates tables in the database (e.g. look for table names jos_kunena_*)

If you are unsure about what you might have done or if you do not know too much about how to administer MySQL database tables, I would suggest that you seek professional help. The easiest way out of these difficulties is to restore your site from a backup taken before you tried to install K 1.6.1.