Floatting social + exec php

Hi, i'm developping a new website using exec php to parse xml feeds, so i'm writing posts using php.
On these posts i can't see floatting social bar, but on normal post (without php) i can see it.

Can i do something to solve this problem?

Oh, and this problem <strike>doesn't</strike> appear on chrome,<strike> only in</strike> IE and firefox.

So now i have this problem on chrome too