I can't say whether your order has been affected, just thought that a heads up might be welcome.
The official SB forum has a thread explaining that SBProPE is currently on backorder, if you would like to know more you could post there or email Nils... Ssnake<at>eSimGames<dot>com.
The delay is unfortunate, but the manual is now updated to include the latest features, so is more useful than 'just' a reprint of the first version.