Other Phones

I rencently purchased a touch pro over the phone with a sales representative. I explained that I needed to use my phone as a modem and only wanted a phone that had that feature. After consulting with his supervisor or senior rep he came back on and said this phone does support phone as modem so I bought it. I can not find this feature, and am curious how to do this? Also, I read that purchasing the storage card would speed up the device. Can someone tell me how to make is phone sing?!? I really like it but feel I am not using it to its fullest.

Thanks!!!