If they're basic popups they may be ok, for the most part plain text ones should still work. A lot has changed since then though, colors were introduced in 4.6, $read has had many changes made, even if statements are quite a bit different. Not to mention the availability of $style(), dynamic popups using $iif() and $submenu. You're right, I suppose they may not need changes to be made, but it certainly couldn't hurt to optimize them using todays coding options.
oxy_babe: you may need to just load them: /help /load
you'll need to use the -p switch and the appropriate sub section. I'm not sure how much the file format has changed since then, if all else fails, post it here and we can convert it into a remote file with menu prefixes and a .mrc file extension (instead of the outdated .ini.)