Oh Please help me with my Sony Handycam DCR-TRV280

Oh I really need some help...Sorry I am new to this site...Name is Laura....I have a sony handycam DCR-TRV280....and I have the USB cable...when I plug it in nothing happens....Should something be happening...or do I need to install a program or something?...I am completely lost...It says it came with a cd-rom...but it's not in the box...I have tried to locate the manual without any luck if someone can please help me I would greatly appreciate it!!! Thank you...I also have other questions concerning the handycam...Like it says you can take a picture...I dont know I am completely lost like I said. Without the manual I haven't a clue...lol...thank you!!!