> Hi Nigel,
>
> Couple of questions,
>
> How does one change to Classic as My database has been set up
> in SS mode and my app has been developed using the DB in SS mode.
>
> What is the down side to using Classic ?

Downsides to using Classic rather than SuperServer:
Your system is less likely to be DOS'ed (Denial Of Service) by someone
running a report that takes longer than a few seconds.
You can now support more than one processor
You can now support more simultaneous users, as there are less(but still a
handfull) serialized sections of the database engine(only one operation at a
time)
You have control over individual processes - a long query can be killed
using the standard UNIX tools to kill off processes(SuperServer would have
terminated all transactions)

If you can handle these downsides, you are ready for Classic on Unix...

> Next question, how does one go about compiling the binarys
> for the Mac version of DB.

Download the official kit.

>
> Do I need to compile these binarys on the Mac our can I
> compile them on my PC and then install them onto the Mac.

Already compiled. Jusr run the installer.

>
> Also how does one transfer the DB that was created on my PC
> to the Mac OS.

GBAK with the 'transportable' flag - just to make sure.

gbak -t -v -b -user sysdba -pass masterkey server:/path/to/database.fdb
databasebackupfile.fbak

Nige.