Then maybe the item you have bought has no slot . Please be sure of this. it would help if you can post a screenshot of the item or at least tell us what item it is.
Or if you have problems on Item Slots , please download a new and fresh copy of the myro-installerV8.exe from our site www.myro.tk
, downloads page.
It is already updated to contain the fix on Item Slots. Please be sure to install properly to avoid errors or you may want to read www.installation.myroserver.com
for the proper installation procedure specially for Win7/Vista OS users.
Let us know.