Recovery Mode Fails on Samsung Galaxy i7500L

I'm trying these steps to root my Samsung Galaxy i7500L. When I get to step 9, recovery mode, I just see a yellow exclaimation-mark icon over a phone icon. I can reset my phone to OEM settings, but I can't see any menu or enable SU/Root. I tried copying the rectools.tar.gz to my root folder (I assume this is the folder that opens as a drive when you plug in to your PC via USB and select "open files/folder" -- I think you need Mass Storage mode enabled though). Is that the right place? Also, even if I reset and then just run straight recovery (without running fastboot to flash first), I see the same screen. What am I missing?