I started a server on Day of Defeat Source using Source Dedicated Server and i was wondering how i give myself and others admin on it.

Also how to add custom maps that i have made using Hammer Editor to the map cycle on my server.

Thank You.

For administration you'll ahve to set the rcon_password on the server, then your admins can type it ingame and they get admin access. This is however a lot of typing and time taking so you might want to look into mani admin plugin or alike.

custom maps should be placed in the maps folder of the dedicated server and then add their names to the maplist.txt and mapcycle.txt (without the extension, example: de_dust2)

well i dowloaded mani admin plugin and i have the files for it but how do i attach that to my server?

Also says in their guide howto ...

http://mani-admin-plugin.com/mani_admin_.../index.php