You're on the Poniente beach, so it's not far to walk into the old town for the tapas bars etc. It's a bit of a trek to where the clubs are at the Levante end though, so I'd get a taxi to somewhere more central like Cafe Benidorm and start from there.
I've never been in January so I have no idea what people do in the daytime in the winter
I've just noticed you say Jan 08! Now that's taking old Fred Pontin's advice a bit seriously