I need to transfer files from a sco/unix system to a windows xp system and they are only connected via a digiboard serial connection. The terminal emulation software connects and runs a program but I need to transfer files. Anyone know a good solution?

Use kermit as the terminal emulation program on the XP machine and then transfer the files using the send receive functions.
This can be done interactively or as a script in a batch process.
You didn't say which release of SCO you were using, on many it is difficult to get transfer speeds greater than 19.2K to work reliably without tweaking the serial port driver.
You might be better off installing Microsoft Unix services on the XP machine,
it's a free download, and then installing cdrecord on the unix system, and transfer the files using 'tar' and copying that to a cd.

Forgot to mention that you also need the SCO version of kermit.
Both were available from Columbia University as downloads

Thanks, I will try that. One of my problems is that I have to do this remotely and often to different systems. I don't have any access to the Sco machine other than that provided by terminal emulation software.