ok.
Just look here:
vBET translate url good (for example - you can see it in your page source after translation to pl)
Code:
http://.../forum/pl/introduce-yourself/390092-witam-y-all-post490968.html#post490968
but when you click and go to this thread you have a redirection to:
Code:
http://.../forum/pl/a/390092-witam-y-all.html#post490968
not good integration with vBSEO.
I noticed that you have a vBSEO 3.3.0. This is old version of this product.
The old version of vBET (before your update) worked in accordance with the vBSEO. it had a good integration, but after update you should update your vBSEO to the latest version.
EDITED:
after update of vBSEO you should make a file integranion once again (for two files: forum root/vbseo/includes/functions_vbseo_url.php file and forum root/vbseo/includes/functions_vbseo_createurl.php file). Everything is described in readme.html file - integration with vBSEO in do-not-upload folder.
After this uptade should be ok. If not - please write here