Direct Connection w/Windows XP + Modem Question

Just inherited a Dell Latitide D600 with Windows XP Professional - which is my first Windows XP experience.

Two questions:

I was trying to shift some files from my prior computer using the Direct Cable Connection capability. Even though the old system is running Windows 98, I was able to make the direct connection easily enough, but then I couldn't "see" the host computer. Usually it shows up as a shared resource using Windows Explorer, but I just couldn't seem to see the host. Is there something about Windows XP that I don't understand. The connection clearly showed up on the network connections and as working properly. What am I doing wrong?

Also, on my dial-up modem, I managed to configure the connections I need without trouble, but when I launch my browser, the connection will not dial automatically and must be connected manually. Is there a configuration issue that is changed under Windows XP that I'm not familiar with?