Change template

I decided to change my template today.So i search a site which offers free blog template.I found one that is very interesting for me,yet i don't know why!Each time i tried to put the XML code it is appears error.So now i check for another one.This one is what i like.I want that my blog will be simple and clean.So i tried to modify everything.Hope you understand:-)
enjoy reading and don't hesitate to send some comments or any suggestion that can improve my blog.I am willing to accept weither it is good or bad suggestions:-)