I know some websites you can go on to see about pronunciation. You can't download any softwares because they only sell at stores. If you want to practice English with typing, reading and listening you can buy software : Rosetta Stone (www.rosettastone.com), but they are very expensive near $300.00 for Level 1 and Level 2.
Websites: www.manythings.org/PP/
http:/eleaston.com/pronunciation/quizzes.html
www.englishclub.com/
http://esl-lab.com/guide.htm
I hope these websides will help you.