After you file

You probably started a new return, rather than returning to the one you had already started.  You may need to use the browse function to find the first copy.  This may be tricky as TT put's the file somewhere it likes, rather than where you might want it;  I always use "save as" the first time to put the tax return in the folder I prefer.  Once you've done that it will find if and save it to that folder henceforth.