Lut, I'm so sorry to read about you BIL's sudden death. I know how devastated your sister must be.

I think it is a good idea to teach her how to use Skype, that way she can talk instead of typing, and I'm sure she needs to talk.

My deepest sympathy to your sister and her family.

This a link to Skype: http://skype.com/intl/nl/

(I could not find a link to the Belgium site, but perhaps you can read this)