You're using a GD-ROM with a BBA to connect, right? If the people using CDI are the only ones getting the connection prompt, it's possible that the CDI is either hacked to enable that or that the CDI was built from a different version of the game than the one you have. I might be able to make a CB code to allow you to force the game to connect to the private server, but someone would have to post the game's 1ST_READ.BIN for me to do that. It's probably better to get someone to write a real patch that will also allow modem users to connect.
"Fear the HUnewearl."