PLZ help VERY confused!

Ok... here's where im at right now:

I want to install a new template for my forum which is here: & i'm following this tutorial: ... 9846#79846 it says to use this tool(smartFTP) to uploas the template, but i dunno the slightest bit about this kinda thing. can someone please help me through it step by step PLEASE. i've tried to figure it out by myself all day with no luck. if i could get a step by step instructions from someone who has done this before i would follow them to a T & tell them any problems i come across in as much detail as possible so they could help me through it. someone PLEASE help!