Check this FAQ entry, it should help you:

And today I present this great contribution from Ziggycan. Thanks for contributing.

It looks to me that the wall has been turned into a smooth poly? Trace do have problem following smooth polys because the actual shape of a smooth poly is calculated from the nodes, and not actually going through the nodes. It does some attempt at a simple approximation of the main shape, but that rarely works out for complex entities.

Looks good. But yea, it's kind of wrongly shaped. The building is also a 3-storey building, so I would expect some visible stairs somewhere going to the other floors, even if not mapped.

Also, since this is an inn, shouldn't there be some kind of reception/bar to find the innkeeper? Or maybe you left it out intentionally.Or maybe I am blind.

When you install CC3+, it asks for the location of your data directory which you can put wherever you want, but the main program will always be installed to c:

However, it is the data directory that consumes space, the main program install is only about ~50 MB, even after installing all the add-ons, so this shouldn't even be noticable on your SSD space.

The installer should find the data directory automatically during installation. Are you installing the correct version (i.e. the CC3+ version and not the older CC3 one, from your description it sounds like you may be trying to unzip the CC3+ compatible support files for the old tome instead of installing the proper full CC3+ version).

I was looking at this for processing, but I noticed you've used a nonstandard compass rose. I need you to replace this with an atlas appropriate one.

A symbol challenge could be a fun activity. I'll have to bow out myself though, while I can draw a decent CC3+ map from existing resources, creating my own symbols is far beyond me. I need those stronger in the art to do that for me.

I did make a script for tile exports that is part of annual issue 129. It is probably overkill for 9 tiles, but it can do the job, you only need to slightly modify it so it doesn't piece the tiles back together when done (the main idea with this script was to be able to export larger images than CC3+ can handle in one go).

But for just 9 tiles, the manual option is just as simple. Set yourself up a new snap grid that is 100 by 80, turn on snap and cursor snap, and then just run a rectangular section export manually 9 times. You just need to remember which sections you have done when clicking the corners for the next, the snap grid should ensure the sizes gets perfect with no hassle. (Obviously, the pixel dimensions needs to be set up correctly in the export dialog as well, but CC3+ remembers these, so just set them up correctly [using the correct 5:4 ratio matching your map pieces] for the first segment)

Yea, those symbols don't seem to be included. I am guessing that the image was an early working draft from the artist, and that those particular items never made it into actual symbols. The actual annual isn't usually done by the time they advertise it.