You can access the settings for the email account through your Verizonwireless BIS website. However, you won't be able to access your emails there. They are not accessible anywhere but on the BB.
Enterprise Activation is for connecting the BB to a Blackberry Enterprise Server, usually through one's employer.
These and other questions you have can be answered here:
Integrate an email account with webmail access if you need web access. It's gone with BIS 2.
Additionally, don't give out or use your *.blackberry.net address except for forwarding. You're SOL (i.e. you can delete and create a new address basically) if you start getting spam via that address.
you can always set forwarding to another pop account...
Hello, you mean if my bb 8700g is down and in case I need to access my blackberry.net account so I just set up fwd mode to have it fwd to my other email account would it work right?
__________________ God will not look you over for medals, degrees, or diplomas, but for scars.~ Elbert Hubbard