Go to your MYSQL browser, open odinms, open shopitems, scroll to below and fill in shopitemid, shopid, itemid, price and position and your done!
If you don't know what is position for the item, open fredrick's shop, count the items in the shop then +1 then put in the position. EG: If items in the shop is 15, add 1 to 15. The position of the new item should be 16.
THANK ME PLEASE---------------------------