I think the main problem is that your website is not visitor friendly.
I spent a whole minute on your website but still trying to figure out the purpose of the website. Is its a general free classifieds? or Travel booking? or something else?
If I want to post an ad in the BUY/SELL section of your website, how am i supposed to do it? Is there any login system?
Cut down on those jazzy and flashy colors/images to keep it simple but elegant. They are hurting the eyes, esp:

Frames change so fast, the colors are so bright that it keeps on distracting visitors attention.
The header logo text should be easy to read. Blue and black in italics with shadows is not a good combination.
The flash banner below header requires me to stop my other work and watch it for 8-10 seconds to read the message in it. Considering that it is reading the same message that your header logo reads, it is advisable you remove that flash.
Right now, I think that even of you get visitors, you will not be able to get them hooked to your site.
And most important problem: Since you are running a B2B, B2C, C2B website, your own website should be VERY famous if you want to earn money through that website.
I wouldn't say more about this, but you will need to improve your business sense