I have done all of my test installs from 7k beta onwards by mounting the image in vista using daemon tools then run it as a virtual disk and using custom install point to the spare formatted partition 
the only limitation it seems is that the new install inherits the partition letters from the operating system it's installed from which means vista insists on being the C drive , but hey a minor problem
the only limitation it seems is that the new install inherits the partition letters from the operating system it's installed from which means vista insists on being the C drive , but hey a minor problem

My Computer
- Computer Manufacturer/Model Number
- built my own
- OS
- win7 ultimate / virtual box
- CPU
- Intel Core i7 3770K,1155, Ivy Bridge
- Motherboard
- MSI Z77A-G43
- Memory
- GSkill Ripjaws Z Series 1600 CL 9.0 16GB
- Graphics Card(s)
- KFA2 GeForce GTX 670 EX OC 2048MB GDDR5 PCI-E gfx card
- Sound Card
- onboard Nvidia HDMI audio
- Monitor(s) Displays
- ASUS VK222H 22" widescreen LCD monitor
- Screen Resolution
- 1680x1050
- Hard Drives
- Kingston 128gb SSD
OCZ Vertex 90gb SSD
500GB WDCaviar 16mb 5000KS
320GB WDCaviar 16mb 3200AAKS sata 2
1TB Samsung 16mb HD103SJ sata 2
- PSU
- Corsair HX 750W ATX2.2 Modular
- Cooling
- Antec 25 Kuhler H2O 620
- Keyboard
- logitech
- Mouse
- logitech MX518
- Internet Speed
- 7mb adsl
