Getting package from "testing" for potato

[Mark]

OK, I still don't understand how to do this properly.

I am running a 2.4.3 kernel on potato using Adrian Bunk's extra packages
for 2.4.x kernels.

Lets say I need the package hotplug (which allows me to setup my usb
cdrw).

Now do I do the following to get this:

1.  Change my sources.list to contain this:
deb-src http://ftp.au.debian.org/pub/debian testing  main contrib
non-free

2.  Type:
apt-get update
apt-get source --build hotplug

Is this how to do it?

Thanks.

Mark.