@ jasmith,
Just to talk shop, yeah, I'm an Adobe user having spent a good bit of time in advertising design and now teaching those apps (primarily Photoshop and Illustrator) at a local community college.
The AI files on Mystara.Thorf have a layer with the grid and then, beneath that, is a layer with blank symbols that one is supposed to select and fill with the appropriate terrain symbol of your choice. Unfortunately, the symbols have no stroke or fill and are not aligned as they should be with the hex grid layer above it. Snap to point doesn't work very well in this instance I'm afraid. I'm not sure how it would work if I converted those symbols to brushes, but I may give that a try.
On a whim, I took a look at Hexographer and it's pretty snazzy. Probably won't work worth a damn on my Mac, if at all, but I can always use this PC laptop I suppose. Don't get me wrong, I greatly prefer the look of a hand drawn map, but I think both can be useful.