1.) ask jasper if you are alowed to join

2.) download hamachi

a) go to this site do download

windows/mac: https://secure.logmein.com/products/hamachi/download.aspx

b.) open the thing that downloads and follow instructions

c.) it will ask you to pick a name, type your real name

d.) go to top and press networks / add network

e.) type down whats on image below: