I like to have Vista and iAtkos 10.5.6 -dualboot?

Hi i have dvd with iAtkos 5i, i already have Vista home premium instaled on my Toshiba laptop, i instaled iAtkos 5i and it was working great but there was no sound no internet, i have resolution like 1024x768 my laptop resolution is 1280x800 and i cant change it... then i install Kalyway 10.5.2 and after that when i boot in vista i get booterror and my hdd was destroyed, but i get a new one... this is my laptop configuration :

Disk drives : TOSHIBA MK2546GSX ATA Device - 250GB

Display adapters : Mobile Intel(R) 4 Series Express Chipset Family - 128Mb

DVD/CD-ROM drives: HL-DT-ST DVDRAM GSA-T50N ATA Device

IDE ATA/ATAPI controllers:
ATA Channel 0
ATA Channel 0
ATA Channel 1
ATA Channel 1
Standard Dual Channel PCI IDE Controller
Standard Dual Channel PCI IDE Controller

Imaging devices : Chicony USB 2.0 Camera

Network adapters :
Realtek RTL8102/8103 Family PCI-E FE NIC
Realtek RTL8187B Wireless 802.11b/g 54Mbps USB 2.0 Network Adapter

Processors :
Intel(R) Pentium(R) Dual CPU T3200 @ 2.00GHz
Intel(R) Pentium(R) Dual CPU T3200 @ 2.00GHz

Sound, video and game controllers: Realtek High Definition Audio

RAM : 4GB

Can somebody tell me if this configuration can work with iAtkos 5i or something else... I like to install leopard update too 10.5.6 so i can use iLife 09 PLEASE TELL ME, and if you know is there any program when i install this to chose to boot to vista or leopard. I DONT LIKE TO BUY MAC !!!! My PC have better configuration than macs...