Create my first Template with me?

Hi guys, im not sure if i could post in this forum. i mean i dont know if my qeustion is in the right place but what the hell, i could try it.
Im new at wordpress but i love it since the first time i had put my eyes on it. I was already creating a weblog but this is so much better. The problem is that i dont understand creating a template for wordpress, so i wanted to ask if someone could help me with this. I already have a good website running, only thing is that i dont have content but that doesnt matter. I only need to transport this “theme” into wordpress.

if anyone have the time and would like to help me i would be really thankfull for it. Im a photoshopper so i could help u back somehow.

thanks in advance,
RobertoW