The Facebook Like and Send buttons are not showing up in any version of Sexy Bookmarks. I tried all versions from 4.0.4 to 184.108.40.206.
Also I have tried it on WP 3.2.1 an WP 3.3.
I have tried all the options. It doesn't change anything.
I have the Tweet, +1, Like and Send buttons checked. (I've even tried to reorder the positions. Didn't help.)
What happens is the Tweet button drops down and moves to the right. Then the +1 button drops down. The Like and Send buttons never show up. I thought maybe they were being replaced by the others, but that's not the case.
There is no conflict with any other plugins since I deleted all plugins except for this one. Flushed the browser cache many times. (I'm not using a caching plugin.)
There is no problem with the server or my versions of PHP or MySql, since I control the server and the software.
I haven't checked the code to see where that happens yet.