Wii: USB Loader GX 4.3 Updated Version offline installing safe ?

I see that installing the home brew Chanel look easy and yes I have v4.3 so can use letterbomb .

http://www.youtube.com/watch?v=m70dCXkn1CE

My question is, Is installing USB Loader GX 4.3 Updated Version offline installing safe ?

Files from Here: http://www.sendspace.com/file/7w5qxu

Like to do this

http://www.youtube.com/watch?v=gKPEgwbCFa8

I wanted to make sure as "I Do not have Wifi at home"

Here are the instructions for offline

Also making sure I do not brick the system, most I can find is most on line is using it vr wifi

So I can use emulators and backup my own games.

Simple answers are most welcome, and help on this Q@A ?

Are anyone who has done it ?, can let me know if they had success .

 

OK got it all sorted ^ , worked wonders.

Although server here need to be a lot faster, 20mins for 750MB, other sites get 3mins max 4 wii games and gamecube.