Yea, I have indeed figured out there's nothing to be done to decrypt them without the right pass, which is why I'm racking my brain to figure out what pass I might have used. It's why I was asking about the min/max lengths. So at least I won't waste time thinking about or trying 1-3 letter passwords while trying to find the right one.
I have pretty much given up hope, tho. I've been at this for a year now, off and on. I've got a couple of non-important passes I often use for stuff like this, and I always thought that all I'd need to do was to download the Plus again and punch them in. Along the 3-4 years I didn't use Plus! I didn't in fact know I had forgotten the password. Just that I didn't have the program to read the logs. Ah well.. live and learn.
Thank you for your time and reply