If you're more comfortable w/ IIS, you might consider to have php and mysql add-on to IIS instead running 2 servers which will cause you some conflict later; however, if you're still interested in 2 servers, check my old post here:
[
forum.wampserver.com]
phpmyadmin is gui for mysql running on port 3306 which has nothing to do w/ either port 80 or 8080, so make sure you don't have any other db server running on that same port 3306
if you get error stated "can't load db extension...", just enable php_mysqli through wamp tray icon
Have fun,
[
test.jlbn.net] (Sample Test Codes for PHP, MySQL, SQLite, ASP.net, SQL, JSP)
[
www.jlbn.net] (Basic Guide for WAMP & Add-ons)