I'm having a problem as well. But not my modded weapons, standard Vanilla guns.
I wanted to start the game off with a set bit of gear and play through only using that, but the trader won't sell the stuff. So i cheap out and go through the whole damn file with Notepad's replacer finding ";NO TRADE" and replacing it with "= 1, 3". So, he should sell EVERYTHING, Mutant Bits, Guns, Addons, Uniques, Armours, even the Arena Guns, but noooooo that bastard doesn't. But, now he buys my Mutant Bits, which he didn't before, which means SOMETHING worked, but the rest of the things that should be on sale aren't. And yes, it is the right Trader (did it to all of the files just to be sure.... <<;)
So, wtf? He sells are Standard Weapons, All Ammos, and All supplies, but no Addons, Uniques, or Armours.
not really because i had already donewhat everyone has told me to no avail, like i said before the modded weapons work to buy of the barman, but not the trader, i have put my modded guns name and values in under all sections containing [ brackets, not only do my unique guns not show up at trader but neither do the original unique guns.(just like the guy who posted before me, no uniques, no addons, no armor.)
Guess Sid ain't in the business of selling the good goods :(
nope i guess he doesn't