You say you had two hard drives, could the files be on the second hard drive?
All versions of Windows have a search facility so why not search for all jpg files (digital photos all have an extension of jpg).
If you search for "*.jpg" (that is an asterisk, then a full stop, then the letter jpg) that should find all files with the extension jpg.
You could do the same with "doc" for all the word documents (search for *.doc).
You dont say what version of Windows you were on, but Windows tends to keep all personal files in folders called "My Documents", "My Pictures" etc, so that is the obvious place to look. Check the "Desktop" folder as well.
But they may be in other folders so if you do the searches I mentioned above it should find them if they are in other folders.