Hi again. This post is to explain all users a little more about this blog.
Firstly, to succesfully agree with another user to trade an item you should use your RuneScape account, can be the original or the new one Jagex added with the player names upgrade.
Also, I want to leave two links for the databases, first one is the Grand Exchange database and the second one is the Zybez item database, so... enjoy 'em.
http://itemdb-rs.runescape.com/frontpage.ws
www.zybez.net/items.php

How the blog works

First of all, this is a RuneScape community blog that enables RuneScape players to find items they can't find in the Grand Exchange or the Trade Worlds in RuneScape.
If you want a full database of tradable items, then you can go and check the Grand Exchange database in the RuneScape homepage, or check in Zybez for it.
I don't ask the users to stick to the RuneScape prices, anyway the items you can find here would be stick to the RuneScape trading limit.
The only thing I would like to ask is: all who uses this blog should play the original RuneScape, not any private server, anyway, it's up to you to decide to play by the rules and make an effort rather than to use a private server in which with only one thing you level all your skills to 99.

Thanks for your help.