You can sort the member list by user name by clicking on the "username" at the top of the list. You can sort by who is online and who isn't, you can sort it by position or number of posts... etc. So, all of theose things listed there at the top you can sort it by. You can also do a reverse on it. For example, if you click on username, it will sort it from A to Z. If you click on username a second time, it will sort it from Z to A.
Rich, I don't know what you mean by search agaisnt the members.