Don't worry ladies and gents, Midna will not lead you wrong. This is legit. ^^
You will need:
- A Data Compression Tool for example WinRAR to extract .rar files
- A Disk Mount Utility program since you will be working with .iso files and that's for basically running a CD-ROM without the actual CD (I use Daemon Tools since it's nice and simple)
- An account to the forum I will list.
Okay, so basically, on warez-bb which is a forum to share software for free. If you want to view this thread, just make an account on the forum. Easy-peasy lemon squeezy.
The thread: http://www.warez-bb.org/viewtopic.php?t=14950668&sid=181d2e35306af952280d241ee9738439
As you can see in the thread, there are links to the actual Rosetta Stone software and the languages.
Step one: Download the Rosetta Stone software, of course. The password needed to bypass the safelinking site is all in the thread. Use your compression tool to extract the goodies from its .rar format- think of it like opening a present or a delivery.
Install the program, BUT DO NOT LET IT RUN AFTER INSTALLING. FOLLOW THE CRACK INSTRUCTIONS!
If you want this to work, you will need to use the crack included in the software download. The instructions in the readme text included ask you to replace the RosettaStoneVersion3.exe file in the Rosetta Stone directory with the .exe file of the same name in the crack folder. Replace the original file with the crack version by heading to Computer, C: drive, Program Files (x86), Rosetta Stone, and look for RosettaStoneVersion3.exe.

(Like my wallpaper?)
See the file we're looking for in the list? Don't mind the date of the file, the one you see is the cracked version I already installed. But take the original file out of the folder and put the cracked file of the same name in the RS folder. At this point, you can run the program, go ahead, knock yourself out.
But the program is useless without languages! Now here is where things get a little weird.
Remember that disk mount software I said you'll need? Get it out and ready. When you finished downloading a language, and you've extracted it, it's no longer a .rar file but an .iso file. This is basically a file type that CD-ROMs use. You've got the program, but without the CD!
You will need that disk mount program to virtually run the .iso file. In other words, you are having your computer behave like it's running a CD program without it actually doing so. It's like a projector projecting a movie onto a wall. You can pretend you're watching this movie on a TV, but you're actually not.
I use Daemon Tools since it's pretty simple and gets the job done so I will be illustrating the process using it.

So here's Daemon Tools. Nice and simple.

First off, notice that in the lower area, the E: drive is selected. Don't mind the Japanese part, I installed Japanese and a
fuckton of languages earlier.

But E: is the drive where CD-ROMs are inserted and ran. Since we're pretending to run a CD, we select that drive to run these .iso files. To add languages to that catalog, notice one of the symbols has a number 1 next to it. (I added it, of course) Use that to add the correct .iso file to the catalog. When it's in, select that file and also select the E: drive.
Now number 2. It's basically a play button. So click it to "play" the .iso file. Other than the notification that the program is going to run the file, nothing is going to happen because Rosetta Stone is waiting for that file to be installed. Open up Rosetta Stone if it's not open yet and head to the part to install languages. It will look for the language currently running and give you the option to install it. Install it and you're good~
After you're done, use it all you want or repeat the language installation process for any other language~
Enjoy!
I hope I explained this all well, I can understand for some it may be confusing. My apologies! Just ask me any question you like in this thread and I will help you the best I can.
-Midi