url display or alias

[Jann]

I am updating a site for someone and when you type in www.example.com in the address you go to the site but if you click on any button on the site it will show my root url http://jann.domains.com/example/?page_id=6 but I just want it to show www.example.com and it can show ?page_id=6

I tried in phpmyadmin wp_options to change the siteurl and home but it messed up my page. I did not update the .htaccess file - do I need to do that also? It is:

RewriteEngine off
<IfModule mod_suphp.c>
	suPHP_ConfigPath /home/jann/public_html/example/php.ini
	<Files php.ini>
		order allow,deny
		deny from all
	</Files>
</IfModule>

# BEGIN WordPress

# END WordPress

I am just worried about screwing up the site if I do something wrong.

Thanks for any help.