Is installing the 18Gb-additional-content of Mainstage free/off charge?

Hello,

I've just purchased the downloadable version of Mainstage from the Apple Store. I don't have any of the Logic products (express, pro, studio, etc.)

After the download, MS requested to download 2Gb of content. and I allowed.

Then, MS offered to install some more content like:

Logic Pro & Mainstage Additional Content -4.6 GB

GarageBand Content ..........................562MB

----------- GarageBand Instruments.........326MB

----------- GarageBand Apple Loops.........236MB

Jam Pack 1 Content ............................702MB

...etc total size: 18.8 GB

Now, will I have to pay for this 18.8 GB load, or is it free?

And... Is MS not supposed to be 64bit? Why does mine say it's 32?

Peace for all...