software to print one year calendar?

[imagenious]

This worked for me about a year or two ago - pretty simple, but it works.

Mom's Calendar

http://www.versiontracker.com/dyn/moreinfo/macosx/11153

Oops - didn't notice the "one-page" qualifier - don't know about that; check it out.
You either don't have many "events" or you're using a REALLY BIG page!