i am trying to hook a sylvania netbook to a 3g cricket wirelss service?

i am doing this for my mom who works at a retirement center and she volinterd me for a tech problem. i wasnt sure on how to do this so i am looking for answers every where. i think the best bet would be take it to the geek squad at best buy or some thing? but i like to learn new things everyday so i thought i would check this site for answers. i would like any and all feed back even those who would like to tell me i shouldnt even be touching a key board. thanks again.