nevermind I jsut found the jeans.
Fun thing:
the second I entered the level with the "P" on the card, I started swimming :-D
I swam through that weird corrdior to the left all the wasy to the green crystal and from their to the nrmal area.
bur since when swimming you cant drop down ledges I am very screwed :-D
I now reloaded the game, back at that area but sadly can no longer swim, so no swimming up the spike tube for me :-(
Edit: oh great, the jeans are fancy and ragged -.-
so I am lsot again on what to do next :-/