What locations should I be writing too?
For example if I want to store 5 bytes, how would I write that?
you can store at whatever adress you want to ....
let's say you want to store these var

First=1
Second=2
Third=3
Fouth=4
Fifth=5

Usually i start write to address 0
WRITE 0,First
WRITE 1,Second
WRITE 2,Third
WRITE 3,Fourth
WRITE 4,Fifth

when you want to read them back...

READ 0,First
READ 1,Second
READ 2,Third
READ 3,Fourth
READ 4,Fifth

that's it!!