One COULD print it, fill it out, re-scan, and attach the scan as an e-mail. Another technique is to download the .pdf file, open it in Adobe Illustrator. Fill out the form in Illustrator and then redistill it into a new .pdf. Then e-mail the new .pdf. (NB: this technique requires some graphic skill to understand what I've just said, but if you understand it and have access to Illustrator and Adobe Distiller, the process will probably be pretty easy.)

--Charlie Baum