We have loads of helpful tutorials here on NG, and they're all on this page.
<a href="http://www.newgrounds.com/collection/flashtutorials">http://www.newgrounds.com/collection/
flashtutorials</a>
For spriting, watch this.
<a href="http://www.newgrounds.com/portal/view/143491">http://www.newgrounds.com/portal/view /143491</a>
FRAYDO
Hey welcome to Newgrounds! Since you are new here, I recommend you check out our FAQ, as it should answer any questions you may have.
<a href="http://www.newgrounds.com/lit/faq">http://www.newgrounds.com/lit/faq</a>
Also, as saqwert said, don't let people like IFuckingSuck turn you away from the site. If you notice under his post, you can ban and delete.