Since the Cursed Company is still an official troop type in WFB, yes, you can field it. With the disclaimer that a) some tourney organizers may still arbitrarily disallow it (but then, I've seen at least one GT organizer literally rewrite certain rules for his specific tourney - forget limiting army lists!), and b) simply a box of skeletons may not be WYSIWYG enough, IIRC the Cursed Company had an armoured hero leading it, as well as some non-human skeletons in the ranks (Orcs, Skaven, etc.).
Oh and yeah - I think the thing is pretty expensive, points-wise. Kinda like Mengil's Manflayers (also a legal DoW regiment) - great at what they do, but cost at least double what they should.