The 180 Emblem save file made by Saiyan Sonic is at Booyaka.com right now, under Sonic Adventure 2 saves. However, you do need to signup for a new account to access it.
Also, AnimeUSA has told us that Saiyan Sonic is posting the 180 emblem save file at VMUUnlimited.com. It looks like this is also a place where you have to create a new account to access the file.
Alternate areas where you can find the download are popping up all over the place, and we’ll let you know where they are.