Shop: Ooo. The Sanctuary .ooO Size 38 Looks like you're not big enough to be in a marketplace yet. There are 3, and they are all dependent upon your size.

All the marketplace positions are by shop size. There can only be ten shops per hut (depending on if it's normal or glitchy) The first hut in the main marketplace (1-10) has the top ten largest shops and each hut thereafter is ordered in size by largest to lowest. The current requirement to show up in the main marketplace is to have a shop size around 605 and higher. The minimum size to be seen in the Mystery Island Marketplace is around 330 and higher. The main requirement to be seen in the Haunted Woods is around 280 and higher. Once you reach the minimum for one marketplace, you can jump around from marketplaces and still be seen. To switch marketplaces, you change your location in the edit shop section. For example, a size 335 shop can be seen in Mystery Island and Haunted Woods, but not main. With a size of 38, you will not show up anywhere. You will need to upgrade to the Haunted Woods marketplace minimum size to show up there. This petpage explains hut positions quite well: http://www.neopets.com/~bugsy_lenny