Hello guys
Can someone tell me how can i change the HTML page that router has from its own with mine one so if someone browse to the IP of my router ,can see what i want in his browser ? 
Hi
Use the Hotspot features 
then you can fix the login page if you whant.
//Rickard
Sorry but i need more help here.
Is there any documentation or a topic about that so i can read it ?
BTW i have 2.9rc7 version on my RB532.
Take a look at http://www.mikrotik.com/docs/ros/2.9/ip/hotspot, especially the section called “Customizing HotSpot: HTTP Servlet Pages”.
juibar