well it's a bit late to come back on this, but if sukur was off-side when the pass to the other guy took place the goal should have been disallowed.
if you take part in the game (and scoring is talking part) when your offside the ref should blow. it's like the 3 goal of france against denmark (wiltord) he was offside to. smae situation and i think i saw vanlangenhoven (a well respected ex-ref)on tv being straight on that "no-goal"
so one goal that the ref gave us (m'penza) and one goal the ref gave to an opponent. not bad!