I read that and I don't even get half of it.
It's not all that difficult to understand. What part do you need help with?
Most of the time it's highlighting a ">" or something and saying that I did it wrong.
True. Probably because you did something wrong.
I'll worry about validating it when I make the next version.
I don't understand this sort of attitude. Validation is not optional. A non-valid site is incorrect, broken, non-functional. If it's not valid, then it's wrong.
If you want to be a web designer (defined as somebody who designs a web site), then you need to create correct code. A web designer who creates invalid code is just a hack, at best.
I mean, you have really basic errors here that need to be fixed. Like the first one there is no attribute "NAME". That one's easy, you can't capitalize attributes. "NAME" should be in lower case, as should all tags in the code.
Other things, like not closing the link tags with />, or using embed, or not enclosing attributes in quotes.. These things do matter. When you don't make a page valid, then browsers treat it as tag soup, and the fact that it renders at all is luck, not design.