what else should I know before I recieve my r4 card I got the R4i-SDHC 3DS RTS if anyone has tips or basic info let me know

Usually, you just put the firmware files on your sdcard and copy over your nds games.

They will work anywhere. I put them in the root of the sd card, but if you want to load emulators and homebrew, you might want to create directories. The sav file will be created in whatever directory the nds rom is in. If you decide to change the location of the nds rom, just be sure to put the sav file in the same location. It’ll load automatically.Do games have to be placed in a certain folder amongst the files? Or will anywhere work?