well i found this in a search yesterday, i think mystikal posted it.
UPGRADEITEMEX 1 0 2 8 1
in the crafter scrip you see lines like this the 1st number
1 = the item time eg you left ring or w/e
0 = the stat you want to add eg dc/mc
2 = the change you will break you item so 2 = 20% change to break and 0 = 0% change to break think thats how that works
8 = the amount you can add to item e.g can upgrade 8 stat points a time with number 8.
1 = wasnt sure think its same as last one.
hope that helps, and i think thats all correct