Accessing PF with changing structure.

Can anyone advise me of how can I solve the following problem?
I have a physical file defined via DDS:
First PF1:

A    FIELD0   06A
A    FIELD1   01A
A    FIELD2   02A
A    FIELD3   03A
K    FIELD0

I have to read data from the file from C-program.
I declare it via #pragma mapinc.... and nicely read data using _Rreadk for 
example.
Absolutely no problem - works all the time.

The problem is, that this file is created somewhat dynamically by another 
application, and sometimes it is like this, but sometimes fields are swapped:

For example:
A    FIELD0   06A
A    FIELD2   02A
A    FIELD1   01A
A    FIELD3   03A
K    FIELD0

As my program needs FIELD1, it never obtains it in the second case until I 
recompile it....

Is there a way to retrieve FIELD1 always, irrespectably of where it is in the 
record.
The record size is always the same and the fields themselves are always 
identical.

Any advise will be highly appreciated.....

Jevgeni Astanovski
IT support department manager
Sampo pank.
Tallinn, Estonia.