i have an 05 and i almost ripped off my stems by flipping my rims too. i think i'm gonna buy the flush stems since it's a lot cheaper than new offset rims or spacers.
If you copy and paste a pic of your quad on to your computers main screen, right click the little icon and choose edit. The picture comes up on microsoft paint and you can color over the rims to get a rough idea of what it would look like with each color.
Mine did it too. I didn't do anything about it and nothing really happened exept that my reeds broke. I don't think that had anything to do with it but it hasn't happened again scince i replaced them.