UNIX for Dummies Questions & Answers

We have several Printers that are pointing to a print server that is now defunct. I need to point these printers to the new print server.

I am aware I need to change the configuration in /usr/spool/lp/admins/lp/printers/printername/configuration as well as in /etc/printers.conf.

However my questions are these:

1) How do I tell if anything is already queued upto these printers?
2) How do I end these printers in a clean state so that IF anything is queued to them then they wont be losed when I restart the printers
3) how do I restart the printer
4) I was going to use vi to make the changes in the above files, however can you recommend the appropriate Unix commands that might do the changes.

By the way I am running Solaris 8

Any help greatly appreciated