[Plugin: WP-FB-comments] Not pushing to Facebook

From the FB Merge Dashboard all looks well:

1 Sharing post 4199 0 *Associated Facebook ID* Success Sat, 28 May 11 12:01:11 +0000
2 Sharing post 4174 0 *Associated Facebook ID* Success Fri, 27 May 11 19:14:43 +0000
3 installing 0 0 0 Plugin installed!! Fri, 27 May 11 00:04:29 +0000

Seems like a couple of posts have been shared/pushed however on my Facebook wall the posts have not been pushed yet.
Are they pushed quite instantaneously or are we talking hours of delay?
Thanks!