Here's a quick lo down with pictures on how to use Hacha. THe second set of pictures is in the next post.
First of all you download all the parts of the file into one place. I used a new folder. (picture 1)
Since I have WinRar (I suggest you get it too, goto google and search for "Winrar" and download the program) I just select all the files with my mouse and right click drag them until I get what appears on picture 2, click extract here and you should end up with picture 3.
Now rajee has kindly added the Hacha program to the Zip, this is all you need. You can now double click on the hacha file called "yami to boushi to hon no tabibito.wmv" and it should automatically connect (if all the files are together). Failing that you'll have to do it the slightly longer way...
The long way
Double click the Hacha program and you should get picture 5. Click the button above "Pegar" that looks like a floppy disk being re-connected. You should end u with picture 6, find the file where you unzipped everything and select the hacha file. Click open and you'll get picture 7. Now click "Pegar Archivos" and it should re-connect.