Glad it worked! It will get easier and less confusing after you've done it a couple of times.

To render an animation, click on Animation -> Make Movie. You'll get a menu where you can choose various settings. For format, I usually use Image Files, because if Poser crashes, you can easily continue. (Image files is just a series of images, that you can put together later using a program like GIF Animator.) To make a real movie, choose AVI. For Renderer...if you choose Firefly or P4, it will use the settings you have set for still images for Firefly or P4. Preview will render in preview mode, which is faster but won't look as good.

You might want to reduce the quality settings a bit for animation. It will speed things up, and you really don't need the kind of detail for animation that you do for stills. Especially if you're going to post the movie to the Web.

The other settings are pretty self-explanatory, I think. You can set the size, pick the frames you want to render, etc.