For internet and email, you need a BB data plan. Call your carrier to see if they provide such support and have them add it and provision the device. If they do not support the BB, then you are probably out of lucjk for email. You can use a generic data plan for Internet, but it is only a work around at best. Check the FAQ for more information.

You need to install Desktop Manager in order to connect your PC with the BB. Since it is an older device, you should probably install DM 4.2 SP2/SP3. From our FAQ, you can find it here: BlackBerry Desktop Manager Downloads - BlackBerryFAQ