Well, I tinkered a bit with a journal entry display page and found that without having to suggest the flavor-of-the-month web design mantra of "replace table layout with CSS only",  just a few CSS tweaks can enable exactly what I am desiring.

For your consideration, here are the tweaks I made to get a fixed header and footer section with a scrollable journal entry section in the middle:

1. moved the journal entry content and footer line (elog version info) out of the layout table structure, into their own div sections;
2. in the style sheet, added attribute "position:fixed" to the "frame table" section;
3. in the style sheet, added attribute sections for journal entry content and footer div sections:
   1. #content: overflow:auto;position:fixed;top:230px;bottom:30px;width:100%;
   2. #footer:  text-align:center;bottom:0;position:fixed;width:100%;

Now as I'm not a web designer by trade and not intimately familiar with CSS nuances, I used the time honored method of documentation lookup with trial and error.

In any case, it worked and displays exactly the way I wanted; please do consider this for a future elog release. 

Apparently you downloaded an ELOG page and modified it manually. Can you send me the modified page, it then would be easier for me to implement it (I can shorten "my" trial and error phase..)