Need help

Now i want to install joo!bb but i am going to need a step by step cause i am realy new to this like a couple of days new i am also new to joomla too so you may have to speak to me as if i am a 5 year old my godaddy pervides my domane name (howman.info) and the webspace is the free account the provide with domain name

i hope some one can help