Thanks for all the help dual booting 98 and Unbuntu. Actually that all went very well. Now I need to ask for further assitance.
I went to Networking to try to gain internet access. Filled out the properties, hopefully right, then went to modem tab. Unbuntu can not auto detect the modem. I set it to the manual setting of /dev/modem. Went out and when I set pppO to activate I get an error maseage "check that settings are appropriate for this network and that the computer is correctly connected to it." If I use any of the other manual choices, such as ...ttyS0 to S3, it appears to activate. however, once I close the network window and go back in I see the message pppO not active.
Device manager sees the Diamond HFC 56k data/fax modem (I believe it uses the Conevant chipset) and it shows the modem set to string 7, I assume this is similar to Win IRQs. Strings 11,17, and 8 are still available but I have no idea how to change to one of those if necessary.
A search for /dev/modem doesn't show up in any file system.
Thanks agian for your help