I am trying to use WAMP on Windows 7, my WAMP is online, but when I open localhost I get the welcome page of IIS 7.5, although I have uninstalled IIS 7.5 from my PC!
Yes, you can just change the port to to any number. For instance change Listen 80 to Listen 81 in the httpd.conf file. Now try with http://localhost:81 and it will respond on port 81!!