As long as this is just for display purposes (you shouldn't store comma-delimited values), here is an option you could use: http://www.sqlservercentral.com/articles/comma+separated+list/71700/
Luis C.
General Disclaimer:
Are you seriously taking the advice and code from someone from the internet without testing it? Do you at least understand it? Or can it easily kill your server?
How to post data/code on a forum to get the best help: Option 1 / Option 2