adding new rows without replacing existing rows

i'm having a problem with writing a script to do the described function.

details:

An existing database to manage all contacts has been given a new portal to hold all kind of contact details such as phone, fax, cell phone, home phone, etc & etc.......... previously, types of contact are kept in separate fields and are poorly organised.

the database currently holds a substantial number of records and thus, a script is required to take data from those separate fields (phone, fax, etc) and put it into rows in the portal.

i was able to do this on the first row but i haven't found a way to add to the second and third row & so on...

any suggests would be appreciated, hope that i described the problem clear enough.

danny