Welcome! Typically, your photos are on your SD card in a file named DCIM. If you have Astro open and look on your SD card. If you do not have Astro, connect (mount) your phone to your computer and look at your SD card. If you do not find the DCIM file do a search for ".jpg" and that will find you photos.
Looks like I still can't locate the photos I took prior to the update on 8/17. I remember seeing others posting about the same problem but I can't seem to find those posts now. Any chance you'd know where to look for 'photo recovery after froyo update'?