The new version, 1.0.4, has solved most of the problems I had with 1.0.3. But just like goldie, I get an error (site cannot be reached) when I tested it.
Also, the FB Like buttons appear in Component content pages. I wish to have it appear in articles only.
We have tested the plugin on Joomla 1.5.17 and everything seems to work fine. Test link http://demo.joomlaserviceprovider.com
Could you please provide more information on the same. If you need you can contact via email also.