How to make a secure connection.So far i have an open connection. My router is Belkin_G_Plus Mimo

Open the router page 192.168.1.1 >> type this in the internet explorer address bar.
1. the Home Page is displayed. Click Wireless from the left menu
8. Changing the Wireless Security Settings
Your Router is equipped with the latest security standard called Wi-Fi Protected Access 2 (WPA2). It also supports the legacy security standard called Wired Equivalent Privacy (WEP). By default, wireless security is disabled. To enable security, you will need to determine which standard you want to use.
To access the security settings, click Security.
The Router features WPA2, which is the second generation of the WPA-based 802.11i standard. It offers a higher level of wireless security by combining advanced network authentication and stronger Advanced Encryption Standard (AES) encryption methods.
2. You can configure wireless security/encrytion settings here. Select WPA-PSK (no server) from Security Mode drop-down menu. The new page will display on next screen
3.Setting WPA Security
Note: To use WPA security, your wireless network cards must be equipped with software that supports WPA. At the time this User Manual was published, a security patch from Microsoft is available for free download. This patch works only with Windows XP.
Your Router supports WPA-PSK (no server). WPA-PSK uses what is known as a pre-shared key as the security key. A pre-shared key is basically a password that is between eight and 39 characters long. It can be a combination of letters, numbers, or characters. Each client uses the same key to access the network. Typically this is the mode that will be used in a home environment.
Setting WPA-PSK
1. From the Security Mode drop-down menu, select WPA-PSK (no server).
2. For Encryption Technique, select TKIP or AES. This setting will have to be identical on the clients that you set up.
3. Enter your pre-shared key. This can be from eight to 39 characters and can be letters, numbers, or symbols. This same key must be used on all of the clients that you set up.