I purchased "The Original" Outdoor Cooker (model 2750) from Target a couple years ago. I need replacement grates...mine are cast iron but a tad on the rusty side. I am going to try to clean them this weekend but I was searching online for a website for this brand and I cannot find a thing! Anyone know a good way to get rid of the rust (its pretty bad) on the iron grates and maybe where I can find replacements if the rust doesn't remove all the way....?? I appreciate your help.