how do i enter my password for wifi onto 8250?

Hi, ive just bought a 8250 on pay as you go for my daughter...i have a mobile wifi that allows 5 different devices to connect at a time ( mi-fi by 3 ) ...its a brilliant device ....ive got it connected up to my laptops , a dsi xL, my htc desire , an Iphone 4 ...all really easy to set up , they scan for the network , it asks for the wifi password , i type it in and bingo ...easy ...but not the blackberry, it wants to give me a pasword ....it connected to another unprotected wifi , but i cant figure out how to connect my password protected wifi to it , any ideas ??? thanks

BlackBerry 101: Setting Up Wifi On Your BlackBerry Smartphone | CrackBerry.com

Thanks for the reply , but ive tried all that originally ...there must be something obvious that im missing out on ...i dont know where to type in the wifi password , there are too many options ..wep , etc etc ..