Accent trans shuttering

Hello to anybody who can help me,

    I have a 97 hyundai accent w/ a single over head cam. My problem is the trans is shuttering very bad when you rev engine up. Also when I put car in drive and try to go. The engine revs up to about 3000 rpms and the car only wants to go 5 - 10 mph. If anybody can give me any awnsers please leave me a message, or e mail me at fourwjive@sbcglobal.net       

                                                           Thanks Eric Waller