I've brought 2 strokes in from the USA, both new and used, and the customs and excise are only interested in duty and vat, no questions what so ever about CE regs.
It's not illegal to own, and they can still be bought new in the UK from Barrus etc. Can still be used commercially over here, and the armed forces, RNLI etc are still allowed to use them.
On a slightly different note, here's a pic of one of a couple of 2005 75hp 2 strokes that have just been bought from the RNLI.
It is better to remain silent and be thought a fool, than to speak and remove all doubt!