Cheers,
moftary
The easiest way to get estimated bids on an older campaign is to copy/paste the group into the traffic estimator. In the estimator don't input a number for the 'max CPC'. In the estimated clicks, it'll also show an estimated CPC per keyword.
... Still waiting for hours without impressions/clicks. I think it's time to contact google adwords support.
moftary, please be aware that there is always a (roughly) three hour delay in your stats - plus an additional server delay as your changes are updated through a really large number of servers.
So, not seeing your stats reflect your changes earlier than 3 or more hours is entirely normal.
Not a bad idea to contact AdWords support, though, as they can take a look at the account itself, and give you a much more informed idea of what's going on than we are able to do here.
AWA