For some reson when I try and put the BFA Popular Posts widget on the R/H side of my blog, it won't appear.

any ideas?

Do you have any posts with comments? The popularity is based on comment count

Well that would explain it! No. I thought it was based upon views.
Is there a way I can show most popular post by # of views?

Thanks!

Not with this plugin but there are others that do this: http://wordpress.org/extend/plugins/....php?q=popular