I hypothesize Google pays for these images, and they are more likely to pay for recent high-res (i.e. more expensive) metropolitan images because there is greater demand (primarily from Google Maps rather than Google Earth). That's why your images are low-res and old. I'm pretty sure Google doesn't own any satellites. It's very expensive to deploy a satellite, and several companies have gone bankrupt with satellite-based products (Iridium is the most notable one, Sirius/XM may soon join the club). If such companies don't recover their costs, they will tank.
I would suggest that you make a case with Digital Globe to see if they will donate images in exchange for some kind of co-promotion. Such as, If you find the downed plane, you will say Digital Globe helped. It's worth a shot.
You should solidify your ownership of the domain immediately, and consider specifics about offers, etc. later.
I had an interesting challenge to my ownership of the Chaco.com domain. We were using it legitimately to host material on Chaco Canyon, as well as hosting our MUD client (formerly owned by our company Chaco Communications). And yet, we were challenged by Chaco Sandals. The challenge was close; we almost lost the domain, just because we were a little sloppy.
The details are here:
http://domains.adrforum.com/domains/decisions/791739.htm
Based on my experience, I would suggest that you get all the domain ownership issues in a solid form: Use your own name, make sure the addresses are correct and usable, don't use a "privacy filter" like GoDaddy sells to hide your identity.
Good luck.
Contemptuous lights flashed flashed across the computer's console. -- Hitchhiker's Guide to the Galaxy