If the list is full of un-recognisable names try loading the model into 
Poseray, you can rename all your textures to something much more usable to your way of working. You don't need the original package the model was made in and its FREE 

Richard
PS: A thought: I find that if I'm using a laptop touch pad navigation is difficult in both the pre-view window and the node window. At least the pre view window has the camera controls but there's no easy DEFAULT option for navigating the node window other than dragging/scroling (the default Zoom is 
Alt+MMB+Drag or
 Click+MMW ). To get round this limitation Planetside have helpfully given us the possibility of changing the bindings on the keyboard mapping. To do this go to Edit>Preferences>Input Settings> and change the Input Pre-sets from the default "Universal" to "Custom" and then click on Customise Bindings. You can then set your keyboard to perform mouse and other custom functions. Personally I've set zoom in to be 
Shift+↑ and zoom out to be 
Shift+↓