abhinav.m.n

Hi I know basics of flash mx and can create animations, buttons, a bit of action script 2.0 and the " LOOK" of a website What i need help regarding is that what do i need to know, if i want the users to register to the website and shop may be, how could i make it secure. Are there easy to learn languages , or tools, tutorials etc ? Where can i find them ? What do i need to know? please help. Abhinav