Saved files aren't loading

Hello,This is my first post so beg your pardon if its sloppy.
I just downloaded the new Wood R4 firmware upgrade and I when I try to load a game it wont load my saved file.
I was running 1.18 before and took out everything except the games and saved files and now...
So the only files I have in there except the games are the _rpg folder and _ds_menu DAT file.if anyone has a resolution or can tell me what i missed id appreciate it. ;DThanks

The saved games will have to be renmamed to , gamename.nds.sav

Ahh okay I just changed the heart gold one and it worked thanks alot.