How do I build a band site with WP?

I've never built a website before and I have the sinking feeling that I've made a critical error by signing up for WP. Here's the deal: I have an existing band website built for me with coldfusion and I wanted to recreate it with another platform so I can have it hosted by a less expensive host like bluehost. This isn't a blogging site, just a description of the group, pics, reviews, clips etc. After purchasing the WP subscription, I was prompted to download the dashboard, install and put in my key. All I have is an update folder on my desktop and no idea as to what to do with the contents. I'm on a Mac. I guess I want to know if WP is a good choice for what I want to do and if so, where to start. Sorry to be so clueless. . .