Cloning this repository:

git clone git://gitorious.org/helpersdotnet/helpersdotnet-xml.git helpersdotnet-xml
cd helpersdotnet-xml

Add this repository as a remote to an existing local repository:

git remote add helpersdotnet-xml git://gitorious.org/helpersdotnet/helpersdotnet-xml.git
git fetch helpersdotnet-xml
git checkout -b my-local-tracking-branch helpersdotnet-xml/master_or_other_branch