I have a hp pavilion slimeline s7700n pc. I've tried Zephyroth Leopard 10.5.2 AMD EFI Rev2 and iDeneb v1.3 10.5.5 and both give me the apple loading sign upon a successful install yet it just keeps spinning and nothing else happens so I don't know where to go from here please your assistance would be greatly appreciated. I don't know what kexts to install so please help me!Here are my specs:

250GB Serial ATA hard drive
1.5GB DDR2 PC4200 RAM
Asus A8N-SLI Motherboard
AMD 64 X2 3800+
Integrated nVidia GeForce 6150 LE video card with 128MB
Wireless LAN 802.11 b/g