Have you run your url through the url linter tool? https://developers.facebook.com/tools/lint/ Sometimes this forces facebook to crawl your site and fix these errors. Other times I've noticed this is just down to allowing time for them to crawl it.
Msg#: 4342424 posted 11:11 am on Jul 24, 2011 (gmt 0)
great works a treat, I think it was because I placed the facebook post behind comment post. I have now placed on the pre post also and works well. Thank you. Is there anyway I can add parameters into the message?