Trouble getting yellow cross

[Ziggy]

Well of course I'm using a beginner method, so right after doing the middle layer, I try to get the yellow cross/fish. Usually this isn't a problem, I get the backwards little L in the upper right and do F R U R' U' F', or F U R U' R' F' and that usually gives me a something that I can keep going with. But right now, doing either of those just gives me a pattern where I never get any variation of the cross, I just keep getting variations of the little L and the line or neither. Here is my cube as of now, the front face being orange, down being white, up being yellow, right being blue, left being green, and back being red. The white face and all the way up to the middle layer is done.
Front Face
|Blue|Yellow|Blue|
Right Face
|Red|Green|Yellow|
Left Face
|Yellow|Red|Orange|
Back Face
|Red|Orange|Orange|
Up Face
|Green|Yellow|Green|
|Yellow|Yellow|Yellow|
|Yellow|Blue|Yellow|
As you can see right now I have both the L and the line, but not the cross. If I do any combination of the 2 alg's I said above, the Up face will just repeat itself in a pattern, getting me nowhere. Oh and by the way, the up face is as if you were looking at the front face, and then moved the whole cube down so that the old Up face, is now the front face. Can anybody help me out with this because it's happened twice to me recently and I just get frustrated because I usually don't get this "rare" case I guess.

 

[Jack]

Does this mean that you have three edges that have the yellow on top? If so, this is an impossible position, because the number of edges oriented correctly must be even. You will have to take out a piece of your cube and flip it correctly.

 

[pjk]

Okay, treat it like this, if you have a line, hold it horizontal, then do FRUR'U'F'. That will flip the remainly two edges so all you have to do is rotate corners. If you have a V, point it towards the FRU corners and do FURU'R'F'. That will flip the remaining two edges. So in your case:
Hold it as you have described above, and do FURU'R'F'. You had a V, already point toward the FRU corner. That will flip the remaining edges and get you a cross. I'd recommend you take a look at my guide here:
http://pjkcubed.com/rubiks-cube-beginners-guide.html

Hope that helps, and good luck.

Edit: Just noticed you had another edge wrong, that is an impossible position. A piece was flipped, so you need to pop a piece out and put it back in.

 

[Ziggy]

Ahh thanks, I took out the last layer and put it back together solved, scrambled it, and then solved it with no problems. I did have a pop a little bit before this though, but the piece didn't come out, it just popped up a little so I had to push it back in, don't know how I would have messed it up but I guess I did somehow. Once again thanks guys, I would have never thought that my cube was messed up

 

[apoplectic]

no problem,it happens to everybody eventually.just be happy it didnt happen in a competition.that would suck.