NRPE and plugins?

I have a few plugins, namely check_postfix and check_suse_update which work great, but when executing via nrpe they return:

CHECK_NRPE: Error receiving data from daemon.

What do I need to do in order to get these working with nrpe? Thanks.

I would check your nrpe.cfg file and see that the paths to the commands on the local host are all correct. Make sure, of course, that NRPE is running. Also, from your Nagios box, run ./check_nrpe to see if you can at least get a version number of the daemon being run on the remote host.