texture pack problem OOT

hey guys! first off im not sure if this is where im meant to post questions/help thread but im new here so please be chill :D

okay so here is my problem, i have recently started using pj64 again (been many years) and im interested in using texture packs to make my old fav games a little less hard on the eyes. i have succesfully ran a texture pack for diddykong racing (so my settings and what not are fine) and it worked well, though when i try a pack djipis oot pack pj64 doesnt try to load it whatsoever D:
i have tried it in plugins/GFX/hires_texture/THE LEGEND OF ZELDA, textures/THE LEG.... and textures/cache/THE LEG.. with no luck.
i see the problem being in file types, my diddykong racing texture pack came in a folder with lots of pngs n the works. where as my oot pack is in a single .htc file.
ive done alot of reading and im sure im doing everything right :(
any ideas?

im using glide64 2.1 (video plugin that comes with the most recent update) i havnt tried another as one texture pack works fine here so i dont see that being the problem :)

thanks to any replies :) and sorry again if this is in the wrong section! :o

edit im under the understanding i can use the htc file as is? some sites ramble on with a bunch of crap but as far as i know all i need to do is drop that file like i would the folder. im probably making a super noob mistake here xd