Create an "engaging" site with loads of unique content that "proves" that your site is worthy of ebay products. That's the best way I know how to put it. eBay is getting tougher and tougher to get into now, but a well built unique site can still get approved. If you need help with your website, I may be able to help. Although nobody can GUARANTEE approval, I do know a guy that will work with you until you get approved. PM me if you'd like to talk to him.
Agreed with the above. EPN wants affiliates who can drive buyers with lifelong value. If all you can refer are lookie-loos they won't approve you. Somehow, your website has to demonstrate the passion your visitors have with your niche.
Sorry pal can't help! why choose only ebay? out there thousand of affiliate you can join..anyway good luck