How to Install/Use AlivePDF in CS3 or CS4

I downloaded AlivePDF 0.1.4.8 and 0.1.4.9 from the their site. However, I am having difficulty implement it in CS3 or CS4. The SWC file just won’t show as others do.

Could anyone please give me a walkthrough on this, please. I am badly in need of generating pdf within Flash. Thanks.