Thank you to Jim for his wise words. Apologies for not immediately taking up his suggestions. I want to concentrate on blogger for now, and get something really nice going on.
The way I've arranged things has both strengths and weaknesses.
The html gives me a lot of control over how things look, but I'm limited by the structure of blogger itself.
Essentially, I wanted tabs within the main page that would take the visitor to another page that had the same theme. Last time I did this sort of thing, I used a frameset. I suppose there might have been a way of doing that here. One for the future maybe, if doing things this way has a negative effect, as has been suggested to me privately.
Posts and pages get buried beneath the html stuff. They also sit upon a semi opaque background, in contrast to how the html stuff looks.
But there is a way around it!
Create other blogs, and put the required information into the html, just as it is on the main page. Then simply point the links to the right places and bob's yet bleedin uncle, innit?
The fail blog will have to stay page based, but that's OK. It cuts down on the work I have to do changing links and creating blogs. I will change it's appearence though to more or less match the rest. It's a bit dark as it is anyway.
Y'know? I'm really pleased with the way this is going. I think it looks nothing like a blog and with a bit more work, I will have something I can start promoting.