Your WAMP icon is staying orange because one of the processes is not starting, likely Apache, and mostly likely because there is a port conflict as all web-servers by default will listen on port 80. However, it is not necessary to uninstall IIS to make WAMP work, you can simply tell it to listen on a different port.
Left-click on your WAMP icon > Apache > httpd.conf
In this file, on line 58, there is "Listen 80". Simply change this value to another free port, and I would suggest using 8080, meaning that line should read "Listen 8080". You can pick another number but be aware that many ports are reserved and you may encounter the same problem so 8080 is a good bet.
You will then need to restart your WAMP server
WAMP icon > Restart all services
Now open, in your web browser, [
localhost] and your status page should load
Hope this helps.