Some how one of the postings for my forum mysteriously dissappeared overnight. It was my rules of the forum and the reply I started the topic with that stated the rules magically dissappeared is there a way to get it back?

No you cannot !

The only way is to post again those rules !

nothing disapears in thin air.

be carefull when using "forum html fix" feature cause it deletes everything. (how ever in that case you know it, it shows..)

if it was deleted by someone by mistake then there is nothing you can do about it.

you should however create a private topic called "recycle bin" or something like that where your mods should MOVE something instead of deleting it...