Client to existing wifi

I need this to setup as a client on an existing wifi network. The configuration on the webpage all seems to be designed to operate in bridge mode. Is there a guide on how to plug in the ssid and other parameters of the existing wifi I want it to connect to?

As written in WIZ6000 web-page, WIZ6000 is made of WIZ610wi.
So, you had better refer to the below link.

[url]http://wiznet.co.kr/Sub_Modules/en/product/product_detail.asp?Refid=723&page=1&cate1=&cate2=&cate3=&pid=1020&cType=2[/url]

There may be some materials which will be helpful for you.