iStockManager requires that your phone's APN settings be configured properly. The APN settings tell the device how to access the internet. On most carriers this information comes configured when the device is purchased, but others depend on the user entering the correct information.
If you can't login with iStockManager first make sure that you have given the application permissions to access the internet. If the app has the permissions and you get an error that mentions the APN configuration it can usually be fixed by configuring the APN setttings on the device. To do so:
1. Go to Options
2. Go to Advanced Options
3. Go to TCP
4. Enter the correct APN, Username, and Password for your carrier.
Here are some links of pages that list the settings for different carriers:
http://www.blackberryforums.com/blackberry-network/2185-blackberry-internet-msn-chat-web-telnet-tcpip-no-bes.html
http://www.pinstack.com/carrier_settings_apn_gateway.html
http://www.blackberryfaq.com/index.php/Carrier_specific_APN/TCP_settings
If your carrier is not listed contact them and ask them for the correct APN settings.
If after you set the APN settings the app still can't connect, try powering your device on and off by removing and reinserting the battery.
