Hi Intersol,
This is what I did to solve the same issue.
Tested with versions
Joomla 1.0.13
Virtuemart 1.0.13a
Sobi2 2.8.2
JoomSef 2.2.4
Extract then open com_sobi.php from the zip file
Before line 21
$title = array();
Add
$title[] = getMenuTitle(@$option, @$task, @$Itemid);
comment out lines 22-25
//$title = array();
//$title[] = 'sobi';
//$title[] = '/';
upload file to components/com_sef/sef_ext
Updated: I should have mentioned this as well.
Important: don't forget to purge the sef urls and clean the cache after applying the above fix.
If all OK you can remove the commented out lines and re-upload.
This modification uses the menu name instead of sobi in the SEF URL.
Thanks Fallen for a great plugin.
Hope that helps.
Cheers
Jim
www.xactit.com