If all you do is enter your outside IP then yes....it is going to go to the router page. Which btw makes it a great idea to change the sign in info to your router lol
You need to enter your IP with a port like: XXX.XXX.XXX.XXX:8090 and XXX.XXX.XXX.XXX:8085. This tells the browser to send the request to that port. A better idea would be to use a service like Dynamic DNS
just use the free part of their service. Then instead of giving out your IP you can give the address from Dynamic DNS....they would still need to put the port tho. like this: www.your_name_here.com:8090.
I have written this four times, so I hope it makes sense. Think of your IP address as your front door and the port numbers as the doors in your home. If I come in your front door and say I need to use the restroom, besides wondering who the hell I am, you'd say its down the hall, first door on the left. If I come in your front door and say nothing, then all you can do is wonder who the hell I am and what I want.
Entering your IP into a browser = just entering your house
Entering your IP with a port number into a browser = Entering your house and me telling you what I need.
You forwarding those ports = You telling me where the bathroom is.
God I hope that makes sense and I now have to actually use the rest room...lol