I just installed Production Premium CS5.5 a couple of days. One of the optional downloads is the Functional Content for After Effects. The description says that it contains templates, footage and a user guide not included with the trial version. I've installed the functional content but I can't find this user guide.
Moving this discussion to the After Effects forum.
It's online: go Help>After Effects Help. It's actually more of a reference work than a how-to for the novice.
AE takes so flippin' many twists & turns that it's darned near impossible to put everything in a logical sequential order. If you're new, you owe it to yourself to pay a nice, long visit to this page. Start at the top with the overview of how AE works.
And there are a boatload of helpful links throughout.