In commission junction i have applied for incentivized leads.but i am not knowing which link to use to promote those leads.do i have to use text link,keyword link or banner?
It doesn't matter which links you use. As far as I understand it, permission to generate incentivised leads gives you license to offer incentives in exchange for conversions. In other words, you are allowed to give your visitors bonuses, money back, etc., in exchange for their signing up/making a purchase.