Rock Elves, If I'm guessing correctly refers to the Rock Monsters In Kelan Cave. (since that's the only creatures, in that lvl 1-10 range that you can earn money from and you can have access to on New Zealand and in North Island. Although just a few sentences above they use they word Stone Monsters.. so perhaps things got lost in translation but that's the best I can think of. But who knows maybe there were meant to be other creatures added to the cave.
Also the Guide refers to "potions" this game does not have HP or SP potions that you can purchase from NPC (at least not in our version and later it was integrated into the IM some version alter after that guide), so they just mean food.
Also at this part here "If you drop your Coprinus and Rice into the Garbage Box, you can obtain some Steamed Buns to restore your HP and SP."
This is stupid because both coprinus (+20HP) and rice(+20) is better than steam buns(+10) HP so its useless to use them in the recycle bin. (at least in our version)
Aniways as you can see a lot of the names are different and also I'm sure they had certain items that were worth more compared to our version. So there is a lot that this guide lacks.
As for the Cave Cirrus. I followed the link also the other links on the post and I see no mention of a cirrus of any type. (the link sent me to a question and guide about the ghost ship, is that the right link?)
okidoki.. no more ramble. let me now if I missed something. =3