Nokia Browser is designed to save you money on data costs. Nokia Browser compresses and optimises websites for your device, so there is less data traffic.
If you do not have a flat-rate data plan, you can view the images in average quality, or you can disable images altogether. To change the image quality,select options > settings > image quality and the quality or no images.
If your device supports Wireless Local Area Networks (WLAN), you can use a WLAN to connect to the internet.
This answer applies to Nokia Browser 2.0. If you don't yet have version 2.0 in your phone, download it from Nokia Store.