0000 steel wool, never use 000, it will scratch the chrome. oooo works to get overspray off gl*** well too. Don
Lots of great info here: http://www.jalopyjournal.com/forum/showthread.php?t=407834&showall=1 We make some products that would take care of you here too. You can use the Wizards Metal Polish or Metal Renew. Then follow it up with the Wizards Power Seal to protect against future corrosion. You can apply our products by hand with a little elbow grease or check out our Metal Buffs that chuck up in your drill. All of our products can be found on our site at www.WizardsProducts.com or call us at 800-356-7223. We can also help you find a dealer that carries Wizards Products in your area. See my signature too!
I have been hearing a lot of good words about POR-15's product called "Glisten PC"...it's a 2-part epoxy clear coat for all polished metals. Manufacturer claims that once applied that the surface can be cleaned with solvents without damaging the finish. I have also heard of folks using it to coat/seal wood bed floors. I just bought a gallon to use on some polished aluminum but I haven't had the chance to use it yet.
Buy some Brillo, are you really worried about scratching some rusty rims that you want to change anyway?
The problem has probably been taken care of now, but could i request some photos? Before and after? If the problem still exists, i can offer a solution.