Multi vendor extensions question

Hi, after happily running my own store on OC for nearly 2 years now I'd like to take on another thing. I need to set up multi vendor store and this extension looks decent enough:

http://www.opencart.com/index.php?route ... i%20vendor


Unrortunately it doesn't have option for customer to leave feedback to the seller after completing transaction, where feedback and score would be displayed on vendor's page. I can't see any other extension offering this, but perhaps I'm just looking in the wrong place. Can someone point me to one if it exists and if not, what kind of cost should I expect to pay for such modification to this script?

Hi,
i can show you some demo multiseller ... on which i worked...also my 1 extension regarding multiseller is running on opencart:
http://www.opencart.com/index.php?route ... ame=aditya
2 demos given here ....also i can customize this for you as per your requirement.

Hi, I have just taken a look at your website because of my interest in your multi vendor extension/s.

It appears that your main site has been hacked

http://www.onlinedesigntshirt.com/

Regardless of that, I certainly will be in contact with you at some future time to discuss my multi vendor extension requirements.

Thanks