Newbie - Pointers on moving.

Hi

I have to move a pgsql database which is running on a linux box to a Windows
2003 server, so just started to find out about pgsql
Not sure what version of pgsql is running on the linux box.  This a library
application written in php?.

I have just installed php v5.0.0 and postgresql v 8.0.1 on the Windows 2003
server and it is working.
I can use phppgadmin v 3.5.2  to login to the gpsql on the windows box.

I am also trying to use the PostgreSQL ODBC connector  to connect.

I am a MS SQL DBA, so know more on ms products.

Any recommendations on how to do this migration/upgrade ?

TIA

RajiA