If you are in the Wordpress admin. Go to Settings>Reading>Front Page>A Static Page. Set this to a page you have created as your home page. This will remove the blog from being the default page and allow you to use pages rather than posts.
I use Wordpress all the time to create websites that don't use the blog function at all. There is no need to include a blog if you don't need it.
From a basic install of Wordpress you can install a theme. If you are working on a corporate website I am assuming there is money to use or some sort of budget. If you are looking for a way to make it easy for yourself on a limited budget I would buy a premium template from somewhere like Themeforest. It only costs $50 max and will save you a lot of time because you gain a lot of extras and the author should have done all the troubleshooting for you. The other advantage is that they will update their themes (this is important for the future as Wordpress updates and other components do too). Look at their most popular themes as they will offer the best set of extras and are usually well supported.
I think that it is worth the investment in these themes, it represents good value and the amount of troubleshooting you can spend while you sort out good tools from the bad can easily stack up.