First, you will get more responses if you post questions in the Technical Q&A section of the TR web site.
If the Laptop is dead, you will need to remove the drive, and install it as a slave drive in the desktop.
The last time I looked, there was a kit for this at www.compgeeks.com in the Hard Drive accessories section.
If the Laptop runs okay, and you simply want to access it from the desktop to use the CD-RW drive, or other backup device, you need 1 of 3 forms of networking.
1. Network cards in each along with a CAT5 crossover cable.
2. Parallel port data transfer cable.
3. Serial port data transfer cable.
Of the 3, the network connection will be the fastest, and most flexible.
Chas