Becks, I'm back from a couple of days down in Umbria, I could only access this forum on the stupid little iPod.
I don't know either variety but hunting around the internet seems to indicate they both have large-ish, regular leaves. So leaf size isn't going to help. You'll know the difference as soon as the flowers start to develop, though.
Alicante looks like its clusters are in clumps of up to half a dozen flowers, but pretty much bunched together. Cerise Cherry, on the other hand, looks like its flowers develop in long strings of ten or twelve or more. Quite a traditional cherry tomato flower pattern. So very different cluster patterns that you will tell apart immediately.
I was down in Umbria helping a friend deal with her tomatoes. I helped her set up the garden and I sow seeds for her, giving her the seedlings. I took some photos of flower clusters for you. Now these won't resemble yours in terms of the pattern in which they develop because hers are mainly beefsteak and medium-sized oblate varieties, but at least they will give you an idea:
EDIT. Having had another look at Alicante and Cerise Cherry on the internet, I would bet a very small amount of money that the CC's leaves are a bit larger than Alicante's.