It's a good start, but can I be a bit demanding?

Sure, let's make it work properly. I want to practice my skills as well.
Now fixed.
One more request: if I enter a number in your LoyceV Search Tool, I'd like to submit it be pressing "Enter", which currently doesn't work. The buttons can stay too

Done!
Done. Just removed all unused CSS. There is now a single file with 14kb, no more css file.
I didn't understand the old posts logic, but I can do it as well if I have more information
I'm guessing you're not the only one, and that makes it quite hard to use. I've explained it here:
Done
A small correction:
- Remove the last 5 digits from the msgID to get the directory name (if there are less than
56 digits, use 0): 0

I didn't understand. Your
low post number (25000030) is
higher than the
high post number (5310200). Is it the opposite?