• First You need to create your application by this format, html code, javascript code, wml code etc!
• Once you have created your Chat room, Login in your Facebook and go to iwipa app page.
• Click on "Go to App"

•  Click on "Install iwipa Page Now"

•  From the next page, select your Facebook page where you want to install this application to create a Facebook chat room.
• Click on "Add iwipa= HTML + Iframe + FBML" 

• Good, now go to your Facebook Page and Click on Welcome Tab (this is newly created tab) from the left sidebar and then click on "Click Here to Activate Your page"

•  Now you will see a complete iwipa admin interface from where you can manage your Facebook page.
• Click on "Tabs and Layouts"

• From the new page, drag and drop all boxes to tray and only keep two boxes (i.e. media box and comments) in Main layout and then click on "Save Layout"

• Click on "Edit Page Content"

• Now, click on Edit of media box, then a new window will pop-up

• Click on "Source", paste your Chat room code in body and click on "SAVE"

• phew... That's it ! Go to your page, click on "Welcome" tab and you will see a chat room there.

Additional Tips

• If you want to Change the text of "Welcome" tab to any other text such as "Chat Room" etc.Login in Your Facebook > Go to Your Facebook Page > Click on Edit Page > Click on Apps > Click on Edit Settings shown just below "iwipa: HTML + iframe + FBML" and enter any Desired name in "Custom Tab Name" box and Save it.

•  If you want to change the default landing page of your Facebook Page, Go to Manage permissions and change default landing page option to Chat Room.