Helpmeplease

Im new to mysql, the only database i have experience with is Microsoft Access Ive got access to a mysql database which is hosted on a paid webhost. My problem is how do i get into the database to create tables etc etc? Ive heard you can use phpmyadmin but i cant get it to work :-( Most of the tutorials ive read assume you have a mysql server but i just want to use the database on my site... I would be very grateful if anyone could give me any advice. Bear in mind that I really am a novice at this but Im eager to learn! :roll: