the rubiks (the cross)

okay. so first you must perform a cross.

and before I get into it here's a preview of what it should look like ->
so first, white face up. the white face is the center white piece. the same principles apply to the other five colors. green face, yellow face, red face, orange (or in some cases purple) face, and blue face. we start with the white as I've said before. now, find the white-blue edge piece. 
now, line it up so that the white part is facing you, make sure it is in the middle layer before applying algorithm. once it is facing you, see whether it is on the left side facing you, or the right side facing you. 
the 'x' is the white edge you are trying to place

white face:
OOO
xOO
OOO
or
OOO
OOx
OOO
yello face:

now apply algorithm. if on the left; use (L), or if on the right, use (R)
if white edge is on bottom opposite white, you are in luck, place the white piece, matching both the the white face and the face it is also attached to, and double turn, placing the white piece where it belongs.
repeat this process until you have a white cross, as shown in the picture ->
please read "the rubiks (the corners)