Well I am thankful for you deigning to help me out here... if only you had understood my actual question had nothing whatsoever to do with email spamming BUT search engine spamming.
Let me put it again so that your mom can read it to you
If search engines can see if you've got text the same as your background colour to beat spamming...
In retrospect I should have explained my question in more detail.
I.e. If my page content had sex,sex,sex,sex,sex,sex ad infinitum hidden by using CSS would the the search engine not 'see' that it was hidden, read that the META tags match the 'content', and fool the SE into a higher relevancy placing.
There, all done and not one mention of images.
And by the way, I find that 9 times out of 10 your responses to questions asked in this forum are excellent and are one of the main reasons I visit so often, however to patronise anyone asking a relevant, and viable, question is plain ignorance on anyone's part - yours, mine, everyones'.