Thank you for such a quick reply. It's a drag that we can't upgrade the calendar without a Debian Etch installation, but your post saved me a lot of frustration. What threw me off was all those files had mipsel choices, so I would've merrily downloaded and extracted. Ugh.
So for the record: the current gpe calendar will successfully import ics files from either google or microsoft, but unless you're lucky enough to live in California, you need to add or subtract hours to determine the true time of your appointments.
Thanks again,
Jake