I was thinking the same thing so I had already done that, as I moved the extracted folder from a temp folder to my planetside folder so everything is there, I try with or without use alpha channel checked makes no difference. I notice the leaf tiff has a green background but that shouldn't matter if we use the alpha channel within the file. tiffs on one of the xfrog items I looked at used a separate alpha file. I have the leaf tiff selected in colour and opacity with alpha channel checked. I take out the opacity file just use colour still the same.