changing/overriding URLs

ok, i have a site in which the URLs like this =>
http://yousite.com/user?page=member/register bother me for some reason.
i know that it dosent really matter at all, but i would still like to change it to
http://yoursite.com/member/register

is there anyway i can do this without messing around with the scripts that i have?
like through htaccess or some other kind of php script?

so basically i want to change http://yoursite.com/user?page=member/register into http://yoursite.com/member/register

Try this content of .htaccess file

Options +FollowSymlinks
RewriteEngine on
RewriteRule ^user?page=member/register member/register [nc]