While I was out there I purchased another SD card as i'm aware that when you accidently delete something your not surposed to take anymore photos on the SD card. The second SD card I purchased In New York works fine and I have uploaded my photos to my PC.
If the new SD card works fine, then your other card is indeed corrupted. My guess is that something happened when you used the trial software (strange that the trial wouldn't recover any photos).
If you format your card, you still may be able to recover some or all images. But since these pictures are very special to you, don't experiment. Your best bet is to call a professional recovery service. As you may know, it can be expensive.
A few related comments:
You should always format a memory card in the camera, not on your computer. In fact, a brand new card should be formatted in the camera before using for the first time.
Also, if you need recovery software in the future buy a name brand one.
So sorry to hear about your problem and I hope you get your photos back!! Let us know.
Related reading: Photo recoveryhttp://www.digicamhelp.com/processing-photos/photo-recovery/recovery-and-rescue/