pad column with leading zeros or space

Howdy:

I'm running Postgres 7.1.3 on Mandrake Linux 8.0 kernel
version 2.4.16.

I am trying to create a table where I need to pad certain
columns. For example, I have a column where it's defined
as an integer 10 but has to be padded with leading zeros,
so the results should be:

0000200201

instead of

[space]200201

At the same time, I have to define a column similar to char (25),
but left justify it with trailing bytes filled with spaces.

In the end, the entire output of a dump should have a specific
format (like COBOL) where there is a start and end position.

Yeah, well, I don't know why a delimited format wouldn't
help the clients, but it seems that they've hardcode
their process so that the text dump will look *exactly*
as specified.

Can someone point me to the right docs / examples?

Thanks!

-X