DSBuff help please

Hi All,
For the love of furry woodland creatures would someone please help me with this bloody thing. I'm trying to apply the arm7 patch to viva pinata and harvest moon using DSBuff
http://homepages.nyu.edu/~yl589/arm7.html
But when I try and apply Arm7 swop in the dropdown menu I get:
file must be named 'arm7.bin' to be valid! Please change/add the file with the correct name.
ARGHHHH
What file? What am I doing wrong????

Now c'mon y'all.lolI believe Anandjones is your man about arm7 fixes.Don't take my advice seriously, but have you tried naming it arm7.bin just for the hell of it?

Change the name to what is needed. Or try using the Arm7 injector instead. At http://www.omgrofl.com/