Custom Biome and Trees (Update)

I am trying to make a make a custom biome but it doesn't see to be working. I chose custom tree blocks, added my textures to it, then chose the colors on the next page for air/land/water. However, I cannot seem to find my biome on several different maps. I even went back and edited the grass color to bright pink just so I could find it easier.

Also, do I have to use a custom block model inorder for the fruit to appear more like an item and not a giant block? Right now I am using a leaf block I added fruit to it so that it would appear somewhat normal(not sure since I can't find my trees). Lastly, how do I make plantable trees? I could have my leaf blocks drop a sapling, but I don't know how to add the sapling to the mod.  Thx.

Update: After many maps I was able to locate some of my biome. Still no trees though. Do I have to use the schematic? I assumed I only had to edit the blocks.

[img]http://i.imgur.com/gtVwsbt.png[/img]