not sure about single cast versions but group versions not effecting lowbies wasn't nerfed till after PoP. Can't find any evidence that the single versions were patched to not be allowed on lowbies, so they probably shouldn't work now, but the group versions certainly should work
http://everquest.allakhazam.com/hist...es-2003-1.html
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June 11, 2003
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- Spell level limits now enforced - Some high level spells cannot be
cast on characters under a certain level. In the past a caster could
get around this level restriction when casting a group version of a
spell by targeting a higher level group member, and the spell would
take effect on the whole group, regardless of their level. That
loophole has been closed. We're sorry if you have grown accustomed to
the system working this way, but those level restrictions are important
to the integrity of lower level gameplay.