LE any tutorial to change the character model or if its not time consuming can you create this

[ays27]

hey guys i want to change the character model like these mods

https://www.youtube.com/watch?v=3Ogdk2XVPYY

 

i imported the model and texture but i dont know how to replace the character model link me a tutorial or make the mod

 

here are the texture and model

http://www.models-resource.com/pc_computer/digimonmasters/model/8591/

 

thanks