need rf 433mhz tutorial/guide

hi firends,

as usual i am here for some basic questions, i want to link a rf remote control to my existing project... and i have tried to Google "RF MHz" and lots of other queries for the purpose... but couldn't get the very basic answers to questions that arose in my mind....

do any one have a basic tutorial or link to it for this purpose?

my needs are a system capable of learning a number of remotes,
the remote just provides a pulse on the relevant pin,
2 channel

what i need help on is....

1 what would be the best approach?[ using decoder chips or uc]
2. how do i link the remotes,[software]
3.is it that i need to use the Rx TX module and connect it to avr's Rx/TX and use the data from udr register, ... or are there any intermediate stages, specially in Manchester coding and decoding....

sorry for asking some weired questions but thats how i am going to understand it...