B&H are in Greece's group - group H - and you're relying on Greece slipping up and failing to overtake B&H then. I suppose it's theoretically possible that B&H could lose to Belgium and draw or lose against Estonia with Greece beating Gibraltar and drawing or even losing against Cyprus, which would mean Greece would finish second in that group and be ranked in the runners-up table with either 10 or 11 points. Not sure how likely that is though...
Greece - who, as I say, have Cyprus to play away and Gibraltar at home in their final game - will likely overtake B&H if B&H lose to Belgium and unexpectedly slip up in Estonia too. Greece would be on 13 points in the runners-up rankings if they finish second after beating Cyprus and Gibraltar and - unless (I think) we beat Wales by at least three goals more than the number of goals by which Greece beat Cyprus - they will almost certainly have a higher goal difference than us as they'd currently be on +3 whilst we'd be on +1 in the runners-up ranking.
Here is group H as it stands:
http://i68.tinypic.com/flit52.png
It's somewhat unfair that group H play their final round of games a day after us, so B&H/Greece will have a much better idea than we will of what they need to do going into their final games in terms of how many goals they might need to score or whatever. Foreknowledge such as that can obviously make a huge difference in terms of how a team goes out to play from the first whistle; be it deciding to keep it tight or going for an all-guns-blazing approach.