Same problem here.
First of all thanks a lot for this plugin, i was looking for something like this for a long time.
Back to the problem.
Removing the slashes from the upload directory worked.
But no matter what, the %file (from the Insertion rules) outputs the path with a preffix of "../"
when NOT using relative paths.
<img src="../http://localhost/wp_playground/sfb_uploads/images/New folder/DSC_0861.jpg" alt="DSC_0861" />
So in the file jquery.sfbrowser.js, around line 315, it says:
sReturnPath = (aFxSfbpath.join("/")+"//"+aFxBase.join("/")).replace(/(\/+)/,"/").replace(/(^\/+)/,"");
so deleted "aFxSfbpath.join("/")+" from that line.
That seems to remove the "../" from the %file output.
Then I added my site's URL at the Insertion rules.
It looks like this:
<img src="http://mysite.com/wp_playground/%file" alt="%name" />
Seems to work. But I would really love your thoughts on what I did.
And if there is a proper way to fix it.