Secure WAP network, WAP network, The Work, The Internet?!

[highmighty]

Hi there,

What are the differences between those "connection types" found in my WM6 smartphone: Secure WAP Network, WAP Network, The Work, The Internet ?

The reason I ask for this is that I have an MMS plan with my provider and I need to configure the MMS settings properly so that I don't get billed for all that GPRS data... so far it hasn't worked and I'm using the "Secure WAP network" connection type when asked, should I switch to "The Internet" type?

Thanks all for your help,

highmighty