I never knew the was a CWCHeat for PS1 games...I was never really interested on using cheats for PS1 games so I never bothered to look. I think I'll give this a try the next time I put FFVIII on my PSP
First of all, you don't need any editors. The cheats.db is plain text. All you need to do is look up cheats on Google and add them to cheatpops.db, then ensure that you actually have that plugin enabled in pops.txt.