Lg vx9200

hi i have LG VX9200 and i don't know how to make it work on my mobile network (T-home or VIP). i can't see SIM card slot. so if there is any way to make ti work on my mobile network, or to put my SIM card inside with my mobile phone number or somthing please tell me. it's my first time to see something like this and i can't figure out how can i do that. tel me everythin you can, no mather how dificle it is i'll make it

thanks alot...