Which UNIX OS are you on?
I’d have a read of this for MYSQL
http://dev.mysql.com/doc/mysql-linuxunix-excerpt/5.1/en/index.html, note that generic unix and say solaris installs are different, the generic linux version will not work here. You may also be able to get the latest MYSQL from your OS provider. There’s a similar page here for apache
http://httpd.apache.org/docs/2.0/install.html once again check with your OS provider first for any pre-built packages.
Beware that if you do have to install from source it can become quite complex if you’ve not done this before, you may for instance have to bump your PHP version also.
I’m not sure what you mean by SSH commands, if you mean a client you can use on windows than have a look here
http://www.chiark.greenend.org.uk/~sgtatham/putty/, this is a lightweight windows base terminal emulator that does SSH. I use this frequently on my windows boxex, its not the only one though, google is your friend here.
As said above by etal this is by no means an easy task if you have no prior knowledge here.