If your Mac isn't reading or seeing the SSDs you're putting in it - your hard drive most likely did not die, but something more serious has happened.
It may well be the ribbon...but if it just "died", I find that hard to believe. The ribbon is nicely packed (not squashed) in the MacBook, with no tension or twists. I put an SSD in my 2009 MacBook
literally yesterday without any problems.
Hope the new ribbon does work for you, though! I'm using a Samsung 840, in-case you were interested in finding an SSD that definitely works in your 2009 MBP. Worked great for me, no problems as of yet, massive performance boost.
Steps I took (I didn't restore from backups, as I wanted a clean install):
1. Connect SSD via USB (need a SATA -> USB adapter thing) to MBP
2. Wait for the unformatted error, and click "Initialize" to open Disk Utility
3. Format to Mac OS X Extended (Journaled)
4. Created OS X Mountain Lion USB installer
[ Do any backups now ]
5. Switch out HDD for SSD, and put MacBook back together
6. Plug in the USB installer, turn on and hold
alt to open installer
7. Follow reinstall instructions, make sure you have Internet connection
8. MacBook will restart a couple of times and eventually leave you with OS X on your SSD!
9. Visit SSD manufacturer website and install latest firmware for SSD (before you do anything else, in-case you lose/corrupt data)
[ Restore any backups now ]
I bought
this SSD and mini-kit, for £79.99. Great for the SATA cable and SATA->USB adapter - very useful for now and future use. Make sure to update firmware though.
Edit: Just wanted to post the above for your reassurance. When I was looking for an SSD that would
definitely work in a 2009 MBP, I found it hard to find any definite answers. I just need this MBP to tick along another few months until the new Haswell MacBook Pros!
I have not "hack-enabled" TRIM - I do not need the drive to last several years.