Can't upgrade to 10.6.7 or 10.6.8 for Lion 10.7 what do i do??

Question

Hello there this is Daniel
I hope someone can help me with the following.. I have a Mac Book Pro and when I was getting ready to upgrade to 10.6.7 this happened right after it downloaded of the software-upgrade on my Mac..
http://cl.ly/0n0p423s423z1k2Q1221
It locked right from where it restarts once a complete download, it started showing these... as follows, not letting me start it.. and it would go pass this..
http://cl.ly/0X433W22042M2I2K3M3Z
I had to take to an apple store which they couldn't identify what the problem was, one of the guys took a hardware test and it showed it was a hard drive driver that was causing this, but it had never had this problem before, so it is not.. I guess...  the rest of the images I took are these, I hope it can help me solve this problem now that I need to use iCloud I can't, not with leopard 10.6.6..
I talked to one of the guys at apple tech support and he said to download the upgrade directly from the support page, and I told him that I had purchased Lion from the Mac App store first thing it came out, and since I could update to 10.6.7 then he mentioned to just download Lion from the app store, I don't think it is going to work really. since I remember they told me they tried it then it was at the shop...
I think that had already been done, I know it is a software issue due the fact that it continues to work just fine on 10.6.6, it is my work and home computer and can't leave it there for long, so I hope someone can help me with this and maybe just get it working with Lion!!! as soon as it is possible!...

Answer 1

Thanks for your reply dear Kurt!
Model Name:          MacBook Pro
  Model Identifier:          MacBookPro5,5
  Processor Name:          Intel Core 2 Duo
  Processor Speed:          2.26 GHz
  Number Of Processors:          1
  Total Number Of Cores:          2
  L2 Cache:          3 MB
  Memory:          8 GB
  Bus Speed:          1.07 GHz
  Boot ROM Version:          MBP55.00AC.B03
  SMC Version (system):          1.47f2
  Serial Number (system):          W8925HXF66D
  Hardware UUID:          A2E8C961-D56B-5641-9E74-29A4AE8998B0
  Sudden Motion Sensor:
  State:          Enabled
Hard-Drive details
Capacity:          320.07 GB (320,072,933,376 bytes)
  Model:          ST9320325AS                            
  Revision:          0001SDM1
  Serial Number:                      5VE21LM8
  Native Command Queuing:          Yes
  Queue Depth:          32
  Removable Media:          No
  Detachable Drive:          No
  BSD Name:          disk0
  Rotational Rate:          5400
  Medium Type:          Rotational
  Partition Map Type:          GPT (GUID Partition Table)
  S.M.A.R.T. status:          Verified
  Volumes:
  Capacity:          209.7 MB (209,715,200 bytes)
  Writable:          Yes
  BSD Name:          disk0s1
  Capacity:          319.73 GB (319,728,959,488 bytes)
  Available:          131.82 GB (131,823,644,672 bytes)
  Writable:          Yes
  File System:          Journaled HFS+
  BSD Name:          disk0s2
  Mount Point:          /
Thanks for your help dear Kurt!