lost data fields

[closer]

we've had to go stand alone with our student database until we upgrade to servce status... in transfer, our main student file (stud.file) is having difficulties backing up to original backup file... no problem except

our main stud.file is the db for our teacher timetables (teachtime.file) and also calls on our teacher file (teach.file) for info...

so our portals in teachtime.file no longer pick up info from stud.file... its somehow switched over to looking in stud.file.bu for its info (and this file no longer works!)...

so I changed the lookup relationship file from stud.info.bu to stud.info thinking this would work... and now the records in browse mode in teach.time where I made changes in the layout mode read as if the fields are not there... ie. there is a problem here houston!

withou having to enter each field again individually in each of the six portals, is there a quicker way to fix this?

TIA dan