Of course it available.See details here
http://blog.gsmarena.com/verizons-nokia-lumia-928-works-on-att-and-t-mobiles-networks-too/?doing_wp_cron=1370159811.2513439655303955078125
You can do it with Ulead Video Studio which is video editing software so you can add songs in the background of your video. It also help you creating dvd's you mentioned here. But you might need a someones help as your not familiar with movie dvd making. Which may a bit harder for newbies.
In the Motherboard Disc (the Disc u got with the laptop)u should find a driver for bluetooth install it. It should work. If it didnt Windows 7 might no be compatible with your bluetooth and if u cant find a driver for blutooth in the motherboard Disc call your local customer care.
Hope It...