That sounds like the settings for T-Mobile Internet, and the wap settings are for the basic T-Zones, both of which should be loaded into your phone automatically when you pop in your SIM card.
importgsm.com's "service" for loading any configurations like that into your s60 when you buy from them is nothing more than a quick way to get $20 more out of you. Hell, they could just send the phone without any settings at all, but when you pop your SIM card in and magically have your settings (thanks to the phone, not importgsm.com), then they look like they've done their customer well. It's a waste.