Hello,
Please see this Microsoft article on how to submit to SharePoint.
http://office.microsoft.com/en-us/infopath-help/submit-form-data-to-a-sharepoint-library-HA010107057.aspx
You should also check out our free beginner's tutorials:
http://www.infopathdev.com/blogs/jennifer/archive/2010/07/01/free-training-design-your-infopath-form-template-lab-1.aspx
http://www.infopathdev.com/blogs/jennifer/archive/2010/07/08/free-training-lab-2-make-your-infopath-form-template-look-and-work-better.aspx
http://www.infopathdev.com/blogs/jennifer/archive/2010/07/14/free-training-lab-3-making-it-smarter.aspx
I doubt that you'll find ONE tutorial to cover all your needs, but you can start piecing together knowledge from various places as you learn about InfoPath and SharePoint. Good luck!