411 as access point with dhcp

Hello Everyone,
I just bought a Mikrotik 411 router board (ver os 3.0) that i want to use as access point.
I need to build a wireless network in a building and broadcast an internet connection. I connect to the internet through a DHCP cpe modem. Tried to set up the router through winbox but i failed.
Can anyone please help me with this issue and tell me whether I can find a step by step configuration of the router.
Thanking you in advance

www.mikrotik.com
wiki.mikrotik.com

there are manuals and examples on this pages

M.