Forum gold is what is mainly used on D2JSP for trading, as of now you have 0 FG. Buy them here if you need.
https://forums.d2jsp.org/buyGold.phpYou agree to a certain amount of ex at a certain FG ratio. After agreeing to a trade on a thread, PM your IGN to the buyer/seller.
While in game, never mention JSP/FG/RWT related terms in game.
Put a decent rare item on the trade window if you are buying ex.
Usually people trade by 2/3 rule, 2/3 rule=(more post/earlier join date/fg amount, whoever has 2 out of 3 will go after, either party can request small trades(split trade into smaller fgs per trade)