Seen other questions, but I think they are not my case.
I think the problem is over here, but I don\'t know how to solve it:
I do have latest Node version in
If you want to install the version you want in the place you want then you can follow my tutorial here on GitHub:
It's about version 6.7.0 but you can change it to any other version. It show you how to install either from source or from binary packages and following that tutorial you will always know which version is where, because you have full control over the installation instead of relying on tools that do that automatically for you.
If you want to have Node 7.3.0 in /usr/local for example the it is just:
wget https://nodejs.org/dist/v7.3.0/node-v7.3.0.tar.gz
tar xzvf node-v7.3.0.tar.gz
cd node-v7.3.0
./configure --prefix=/usr/local
make && make test && echo OK || echo ERROR
sudo make install