12InchesofSlack

Ok so I've made lots of progress from the community and i have a question. I edited a game awhile back ( teknoparrot RAMPAGE ) and i want to go back and do some changes. So obviously I can't use the import tool in the gui so I tried typing in the rom name. I did that ( did not pull up original changes) so I created a new one, saved it, launched the game and it did not work. Question is how can I see all the games already done and possible do edits? Sorry if this is a complete noob question.