Eric - that was only pseudo- huff - see my face! I'm sure you knew? And should have read this page before replying to your other note. Couldn't figure what the chicken was doing there! Bit slow witted, I'm afraid.
And MD - whiz-kid? Still looking - none around here!!
Anything that I know has been gained inch by inch, and question after question. Several folk on garden web tried to point the direction, but the key thing was finally understanding what and where this 'free web space' was. And that only came about when I bought a new printer, and it had a (almost} child's guide in it. And, of course, Dan's patience. And, like many 'teachers', it's a question of passing on what you've swatted up the night before?
best wishes, Tim