Final Customization of Shopify Debut Theme On-Line Store

I have customized my site but am having a few problems - making the 'links' work; centering text in a few places; bolding text in a couple of places; setting up my shopping cart'; linking four of my 'pages' so they show at the bottom of my site. The attached document gives specifics that I need done before I can launch. Time is of the essence. Thanks.