No I haven’t found a solution to integrate Safari with sitebar but I did find a work-arround that is almost as good. I simply bookmarked the sitebar pop-up bookmarklet listed on the Integrator page ->

http://spendy.org/sitebar/integrator.php?lang=en_US

This opens a new browser window similar in size to the sidebar. Expose makes it easy enough to jump between Safari windows so usability hasn’t been a problem for me.

Let me know if you come across a better solution.

did u find a solution to integrate sitebar into safari ?
I got the same problem/requirement and still not found a solution..

Thanks for your answer..

Cheers,
Marc