Are there any affiliate programs that dont work on click ads?

I mean i want to advertise my product on yahoo(for example).I am ready to pay a fixed budget but am not willing to shell out money to yahoo every time someone clicks on my ads.Are there any such ads?

Most of the larger companies such as commision junction, buy at, affiliate future and loads of others offer set fees but you then have to pay whenever a sale is made which means you can't set a fixed monthly fee.

It might be better to advertise your product on an established website that will charge you a set fee for a given period. I run 7 websites myself and I have placed adverts for as little as £10 per month.

I would have a look around for sites that are already selling products similar to yours and find out if they sell advertising space.

Yea there are. You can use classified ads and they are mostly free and work great. You can also do pay per post programs.