Advertise problem

I didn't use my forum for a long time, but today after login, i've noticed that my forum has some advertisements at top. How can i remove them ? o_O

And another question: I wanted to buy a domain for my site and host. So how does it cost ?

Thanks in advance.

My Forum link: http://worldcommunicate.heavenforum.org/forum

Advice : Don't buy the domain through ForuMotion.

Reason :
1. You can't request for the domain transfer code when you like.
2. It's more expensive ( normal price is around $9 and with FM, it costs $22 ) .

Sign up for an account at a popular registrar such as NameCheap.com and purchase the TLD yourself.

PS. You need to pay to remove ads from your forum,

aha ok thanks for ans.