Yes I couldnt get it to work so I used the free addon from Sobi2. I disabled Joomsef. As your product didnt work I guess a refund would be a good idea?

Class 'sef_joomsef' not found just installed the sobi2 exstension for Artio joomsef

I installed through the joomsef exstension manager - however it doesnt show as being installed.
I have disabled cache on all sobi2 levels

Still not working, as this is a paid plugin I will be requiring some assistance alternatively I may have to ask for a refund as I have followed all the instructions.