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#11
The image is not covering all the information.
Remove disc 2 and disc 3.
Mark the 100 MB System Reserved partition as active.
Method three of Partition - Mark as Active
The other partition does not contain any drive letter, which should be "C". Give it the name then ..."C"
How to change drive Letter - partition software Partition Wizard Help
Now rebuild MBR of the disc.
How to Rebuild MBR with partition manager - Partition Wizard Rebuild MBR Help
Try to boot the computer back ..... with the 320 GB HDD only connected. Let us know it worked or not.