Url Alias problem

I am working on a client's site and am facing a strange problem. I have created a template page "page-taxonomy.tpl.php" for some custom formatting and custom coding. I can send you the code of this page if you like.
The main problem that i am having is that, my page outputs the url of particular pages as

/server1-(game1)?parent=204&visit=1&game1=Game1&l=1

however i want to make this user friendly and want to make it appear as

game1/server1-(game1)

For this i have tried to add url-alias for the above url, it adds successfully... but when i try to access the page from

http://localhost/mysite/game1/server1-(game1)

it gives me "Page Not Found Error". What is the issue behind this? Can somebody advise on how to rectify this?

Regards
Waqar