hi quiltcrazy,
you say you're not very computer literate, so i'm going to make this very simple (you can always ask more questions). If i'm making it too simple i appologize, again ask more questions.
EQ6 (i think the newest version), you don't have to have earlier version, is a software for planning quilts. If you buy EQ6 make sure its the whole program (I think that's the way it comes) and not a upgrade. (it's a while since i bought mine so i'm not sure how it comes) when you open the software on the computer you will see a quilt with blank blocks. You can choose how many blocks you want in quilt and their size, you choose borders, how many and how wide or no borders. you can skip choosing blocks and borders and just use the quilt that's presented there. then there are "libraries" the block library has 100's of blocks and you choose which one/s you want in your quilt. there are pieced blocks, applique blocks and you can draw your own blocks. then you can change the colors/fabrics in the blocks and/or you can even scan in your own fabrics and make a quilt with exactly the fabrics you will use. The manual that comes with the software has lessons, i found them excellent and they will teach you what i've just mentioned above and more. You can also choose the type of layout you want, horizontal, on-point, horizontal strip, custom set and a couple of others. Of course along the way you have to save what you've got (the program usually says something like "do you want to close this without saving". There's much more. I'm sure there are things I will never use, and there are things I don't totally understand. But, I probably don't need to know them at this time.
Also, I have found the Tech support to be excellant, and they've explained things so i can do it. That's about all I'll say for now, of course the more you play with the software the better you get. And, it's easy to play with, i can sit down and threee hours later I say "oh my gosh have i been playing this long.
I rarely use paper and pencil any more, because it's probably doable on the software. Oh, I forgot printing, you can print blocks, quilts, rotary cutting charts, paperpiecing patterns, and templates. I've probably forgotten something else you can print. Oh yes, how much fabric you need.
Hope that answers some of your questions. Of course there's a lot more, in fact there are videos included in the software and you can look at them at any time.
peel