I am not realy sure which data do you mean but I think the data you need is in directory HRB\ENG. Other data you perhaps need on both computers is in directory WINVOR\ENG and DBA\ENG.
You could copy this directories on your ZIP drive and change the paths in our menu (function 5-3).
But you should be carefully with this. If your data gets lost...
You can keep the paths on bothe computers as they are and just copy the data from your ZIP drive to both computers. So you just transport the data with the ZIP drive and you work on the normal harddisk.