Domain name

I started a new web site here on yola site and started building my first web site for my business.. I am new to building websites.. I have tryed to add a button on my pay page for payment that can be made thru paypal but I got the logo on there but have no clue on how to make it if they click on it for it to take them to a payment for throu paypal.. Can anyone help me with this?

Also, i paid yola for my web address/domain name.. where can i find how long it's still good for and do I have to use yola to keep my domain/website name? I really would like to keep it but not sure if I should use another hosting site or just stay with yola..

Also, I can find my web site www.masterpoolrepair.com if i type it out in full in a browswr bar.. what can I do to find it on a serch engin with out having to type out entire web address?

Any help will be great full due to not knowing much about building or setting up web sites.. but I need to get mine going for my business..

If you have any Ideas let me know...

www.masterpoolrepair.com
www.masterpoolrepair@yahoo.com