Welcome to ATP Becky!
Basically for postage means that the iris get mailed to you in a priority mail box, and you mail a check to cover the amount of the postage. A large priority mail box will cost about $17, depending on where you are located. If that works for you, then you can treemail me (ATP's private messaging system) and give me your address and such. The easiest way to find the treemail is to click on my name (above in blue) which opens my page, then click on "send this person a treemail."
