There's no real learning involved. It's a bit complicated the first time round but after that it's second nature.
Step 1: get the game you wanna translate (obviously)
Step 2: find the RPGMaker program that the game was made in, NOT the RTP the actual maker.
Step 3: Create a new project in RPGMaker, save it
Step 4: Delete EVERYTHING except for the Rproj file, it's important.
Step 5: Extract game that needs to be translated.
Step 6: Copy all the files except for the data file (so copy the EXE any DLL's, the data FOLDER and graphics folder but leave the data file behind)
Step 7: open RPGMAker and get translatin'
Progress report: There's been none, personal stuff came up out of no where, back on track now though