Hey,
One good website someone posted on another thread i started had some real good stretches which show you everything.
It has beginner stretches and more advanced ones.
Although i do believe it is lacking and even as a beginner you should work on lunge stretchs like THAISTYLE has mentioned, also go for groin stretches (sit with your feet together and push your knees to the ground and/or push your head into your toes.
I also love this one i do which really warms and limbers your legs up for further stretching.
1. lay on your back and raise one knee to your chest (chicken wing your leg)
2. pull that knee in hard and feel the stretch for 10seconds (keep you butt to the floor)
3. VERY slowly with the the hand on the same side, pull your knee around in an outside circular motion and hold it on the widest position for 10seconds
4. rotate it VERY slowly back to the start position then across your other leg so you feel it in your butt for 10 seconds.
5. return it back to the start and then to the ground
6. DO THE OTHER LEG!
Remember if it hurts, release a little and continue.
www.combatfitness.co.uk
check it out!!!