Okay- this is my first time modding anything- and I'm a bit stuck..... 
 
 Under the texture packs <> 8 <> 800x600load.tpc 
 
 I just did a simple little edit by changing the background to something with a little bit of neon reflection....so, I opened it and then selected 'write file' and saved it- changed the picture- and then re-saved it. How do I get it back into the files so when I play the game - it will be there..... :)
  
 
  
  
    Put in the Override folder.
  
 
  
  
    Oh-
 
 *that was embarrassingly simple....*
 
 :p