Quit my job and now i need some help!

[Momo]

Well I quit my job a week ago and now I need some help. I have a 401k and stocks from the company that I need to "roll over", as the paperwork says. I have no idea what im doing or even need to do. Right now the 401k is through Merrill Lynch and the stocks are through Computershare i believe. What do I need to do now? I recieved some paperwork from the company saying i need to move these but I don't know where or how. Anyone with some advise i can use?