Some advice for "polishing" the wheels...
You aren't actually polishing them, you are just stripping the silver paint off of them to reveal the machined aluminum surface...
1. Use the aerosol can of stripper
2. Only leave it on for two minutes at a time!!(It will probably take 2-3 trys to get it all off).
3. Just flush off with a hose, DON'T scrape it with anything...
4. And you should be done then...although you will probably want to clean the tire thoroughly, because it tends to leave a yellowish residue on them until they are cleaned.
As for care/maintenance...I just spray rim cleaner on them and spray them off with a hose...they scratch easily, so you have to be careful, don't even rub them with a sponge! Then just dry them with a chamois...