Dian Sheng Petal 2 layer pie puzzle tutorial?

[CooperB]

I've been looking all over for a tutorial for this puzzle. I got it for Christmas and get like 90% of it, but cant finish it! Here's a link to it so you know what it looks like:

http://lightake.com/detail.do/sku.DS_2_Layer_Petal_Column_Magic_Cube_White-34917

I know it looks easy but it is very hard...

 

[rubixwiz031]

Its called a rubiks cheese. You can google that.
BTW it's the same as a rubiks UFO.

 

[qqwref]

Use commutators. Hint: R U2 R U2' R.