I have installed an ethernet card, I want to confirm this is just for access to my internal network, correct. It is not a wireless web browsing tool. What is the range, or should it say it on the card, and if I stay in the range I sho8uld be able to get internet through my newtork, I want to avaoid dialing up, and I want to use the DSL from the offfice. I have heard of other types of crads from SPRINT and such for wireless web access, do I need one of these to get the internet.