Using this skin from other trees

[jonbon29]

Hello guys 1st of all I don't know if this is the right place to post this but it says Texturing & Surfacing I just wanted to learn how to put a custom texture to a tree

These are the textures that I wanted to put to a tree.....

View attachment DarkGreenCanopy.blp

View attachment TrunkSkin.blp

Example is this tree View attachment AshenTree6.mdx and this one too View attachment AshenTree11.mdx How can I put the texture to them, step by step.