Ok, looks like I was wrong before. The .png files need to go into %MCP%/eclipse/Minecraft/bin/tutorial/generic if you are following the code in the tutorial
Looks like my problem was I needed to Refresh the Eclipse Package list, and then my .png files showed up. For reference, they are in %MCP%/src/minecraft/tutorial/generic, one folder above the ClientProxy.java file
Ok, I'm wracking my brain here, but having no luck. I can't seem to get the Tutorial's Textures to load in my game. Can someone tell me exactly the path (from the MCP folder) that I should be putting these files in, if my package is named Tutorial and the Mod name is Generic? I'm sure this is a dumb question, but I just want to get textures working before I move on. Thanks!