After you get the board done, and assuming your version of Eagle will make the Gerber files for manufacturing, you can try uploading your Gerbers to the freeDFM utility, at
http://www.4pcb.com . It's great. Their boards are great, too. And the whole process is almost painless, there, even for a newbie.
Or, if you don't want to spend the $ for a PCB fab house, you could try it my way, as described at
**broken link removed** . You can make bare-bones boards in less than an hour, for almost nothing.
It's too bad you didn't try Easy-PC, instead of Eagle. Easy-PC is much easier to use, IMO, and is a much more capable program. It's by Number One Systems, at
http://www.numberone.com . They have a free demo. But I don't remember what its restrictions might be.
You should be able to easily create a library component for the 28-pin chip. It's easy to do with Easy-PC, anyway. I've never tried that, with Eagle. If you can't make an actual library component for it, you could, as a last resort, just lay down solder pads in an appropriate pattern.
Good luck.
- Tom Gootee