First I assume you have POP access turned on?

As long as you do, all you need to set is:

POP3 ac****
username is your full email address
password is obvious
incoming server is pop.gmail.com
outgoing server is smtp.gmail.com
click Advanced Settings
on the Incoming tab, set "Security" to SSL and change the incoming port to 995
on the Outgoing tab, set "Security" to Normal (TLS) and the outgoing port to 587

I also have it set to download all message content and to remove the message off the server (which should archive the message in Gmail if I'm not mistaken).