Artmoney, is a value editor, in runescape it edits the amount you see, but not the amount you will keep.
If you use artmoney to get 100M, when you trade, or bank it will turn back to its normal value.
Dont beleive someone, of they say they got alot from using this programme.
You may also find this useful: http://jrealm23.wordpress.com/2008/06/10/i-have-alot-of-money-on-runescape-look/