Flow Layout In Rs2005

I have a report that needs to show postal addresses. The address is broken down into several fields. The problem I have is some of the address parts are optional. If they are empty, I'm left with nasty gaps in the address. I'd really like next label to reclaim the space of any empty labels.

a quick example

A full address would look like this..

customer name
address line 1
address line 2
town
county
post code

if address line 2 isnt given, I get:

customer name
address line 1

town
county
post code

but I want:

customer name
address line 1
town
county
post code

Can anyone help?

Many thanks,

Paul