Not one to run from a challenge, but there is such a thing as beating your head against a stone wall and not getting the results you want. So I'm sorry to say - I'm stumped and haven't had any luck yet. I do appreciate the help you've provided, and it did give me some insight to Linux commands, so not all was a bust. I actually learned something. Maybe I'll yet hit the right combination, but it's not been very much fun trying to do something and not get the proper results.
I tried several things as you suggested; I followed the original Esto-Granular boot splash's parameters while adding a new graphic and didn't even change any parameters, but gave the file a different name, but still no luck. I continue to get similar errors I described before. I know it's something I'm not doing correct, or I would be successful. So, it's back to the drawing board for me.
In the meantime, I can at least say that I had a sort of half-way success - I 'cheated'. I swapped out the original Esto-Granular graphic with one I created and changed the name to reflect the original. I also backed up the originals in case I ever want to use them again. At least by doing it this way temporarily, it's allowed me to get a sense of what this design would look like if it were actually working as a bootsplash. The mock attempt actually works really well for this design, because of where all the original elements were set up with the original Esto-Granular file. The progress bar sits right underneath the Granular text logo I created perfectly, which I didn't actually plan out but got lucky. I also have a few personal critques with some of the artwork elements, but overall, I was pretty pleased. I'll let you be the judge.
With that said, I am going to go ahead and upload the design I created and perhaps yourself or someone that actually knows what they're doing can turn this design into a working bootsplash. I have different sizes as well, so I can upload the others later. What I would envision is a small progress bar next to and underneath the penguin head logo as a progress meter. Under the Granular name, I'd really like to see the loader text information in white.
The colors I chose are a little bit colorful - red, white, and blue. Actually, the original I did come up of the graphic I'm uploading was in black in white with shades of grey. It had nice contrast, but I thought color was a better idea. I also wondered if adding a glow around the 'G' was a good idea or not. I can live with it, but I think there are many other ways of handling this. At least you get an idea of what I'm capable of designing.
With that, I'd like to make this graphic available for someone, or yourself, to try their hand at creating a bootsplash out of it. My interest is really in graphic designs, not the nuts and bolts of things, but the creative aspect. The graphic might not be the most exciting design of all time, because I've seen things here on this site that make me envious, but I'm sure it gets the Granular name of the distro across.
The only thing I would ask is that if someone is successful, and does upload it somewhere, please be sure to give me a credit for the design concept and Geminuguy for his permission of the grey-swoop now turned blue, and I would love to be able to download it to use as well!
Well for now, I haven't given up, but I think I'll sit this dance out for a while. Again, thanks for your help. I'll keep my eyes on this board for a while. Maybe I'll get lucky one day.