Hi,
you could use replace text feature:
http://manager.freddy.lt/faq.php?expand=faq305 (and enable to search in all websites).
or via extract and replace links window:
http://manager.freddy.lt/faq.php?expand=faq304 , by entering more links on the right (but you would need to copy paste old ones first).
or if only needed for your blog by editing single post:
http://manager.freddy.lt/faq.php?expand=faq301That's the only ways at the moment.
Edit:
I have added new feature when using "Extract links". Use "Extract links" feature and enable "Add links as mirror" at the top.