HI Kiki and welcome to Kitties.
This is the lm to the main store were you can buy food
http://maps.secondlife.com/secondlife/Ki.../119/11/26
If you join the group you can ask all the questions you want there, it's full of very nice helpful ppl.
secondlife:///app/group/277f5464-f119-e489-4517-ad3d0dd63cc8/about
In case the url thingy doesn't work for the group it's KittyCats Addicts and can be found in group search.