What is all this i hear about "Uping Items"? i think i know that it boosts stats and stuff, but how do you do it???

http://www.blizzsector.net/diablo-ii-discussion/25195-upgrading.html

check out the last post in the thread.. i think this is what you're talking about.

to put it simply its upgrading an items like uniques. check out the arreat summit under the horadric cube to see how to up (upgrade) items like uniques.