# foxhound :
The code in the seditio compatibality plugin looks like this: sed_bbcode_add('thumb', 'pcre', '\[thumb=((?:http://|https://|ftp://)?[^"\';:\?]+\.(?:jpg|jpeg|gif|png))\]([^"\';:\?]+\.(?:jpg|jpeg|gif|png))\[/thumb\]','<a href="pfs.php?m=view&v=$2"><img src="$1" alt="" /></a>', true, 128, 'seditio');
In the BBcodce you see ((?:http://|https://|ftp://
This means you need to put http:// before the picture, so the whole path. Not /datas/thumbs/...
... can we help you ...