Can you bump in the employment center as long as it isn't more than one double post, and has been a month as specified in the advertising forum rules?
You want to bump your employment topic? Hrm, I suppose if it's slipped off of the front page and it's been more than a few days since your last post then it's fine.
Well if it has been over a month that someone lastly replied in there, or you have, it's better to start a fresh new topic, as it might already be on the second or even third pages of that forum ^^.