perl -MCPAN -e shell question - need a howto

[Andy Firman]

Using FreeBSD 4.10 stable, perl-5.8.5 installed from ports.

su-2.05b# perl -v
This is perl, v5.8.5 built for i386-freebsd-64int

When using perl -MCPAN -e shell, I can install the bundle fine,
but the when I try to install XML::DOM, or Text::Aspell, they fail.

Where can I go for help on getting the bsdpan ports installed?
Or is there a howto on this stuff because I am clueless?

Thanks,
Andy