Train travel from Guilin to Beijing

Hi,
We would like to book train travel from Guilin to Beijing on 31st of July 2011. We would like to travel on the T6 train, hard sleeper (or soft sleeper if available), leaving Guilin at 13.28 and arriving at Beijing 12.07 for 2 people.

Is this possible? If not, please provide us with details of an alternate train that is available.
We will be staying at the below hostel from 27th July to 31st July.
Guilin This Old Place Int'l Youth Hostel,
Address No2, Rd. Yiwu, Guilin, China, 541001
Telephone - 0773-2813593

Can the tickets be delivered to this address?
Please provide us with the total cost, including booking fees etc.
Thanks
Carly Ward