For some reasons i am getting either uRLs with numbers such as 37.html or double slashes with number such as 24.html
I have uninstalled and then installed several times and I keep getting the same result.
Any help would be gfeatly appreciated!

Hello,

this is usually caused by not having an extension for some component, so JoomSEF does not know how to create nice URLs. You can either check our site if there is an extension, or try to find one from 3rd party. Or you can turn off creating SEF URLs for the problematic component on JoomSEF's Configuration page.

Best regards,
ARTIO Support Team

The Default configuration does it. I can't stop it doing it.

You don't need to spend more money on this.