You talk about floorplans here. Did you create that using the floorplan tool from a city map? Did you perhaps pick a floorplan template for a style you don't own?

Try the print Wizard. Right click on the print button or find it in the file menu. It guides you through setting up the print, including multi-page print.

It depends on how you wish to do the planning. If you have an idea of how you want your world to look, I would start there. But if you don't, it is better ti start with a regional map, and then gather some ideas as you play.

The advantage of having a world map is that it is easier to be consistent with the information you feed your players, but it can also restrict things a bit as well.

Are you looking in the right tab of the fill style dialog? If you see "Solid 10", that indicates you are looking at the "bitmap files" tab of the fill style dialog, while "Solid" is on the "Brush Patterns" tab.

Yea, I think the first option for each product should have gotten you the right installers, but generally, what you should be looking for is if there are separate download links for the CC3 and the CC3+ version, in which case it is important you get the CC3+ one, the installers for CC3 will not install properly into CC3+.

And yea, getting the monthly content installer is good, it contains extra free stuff.

Now, make sure to install the base product, CC3+ first, all the others (except FT3) requires it.

Now, as for products installing things other than in program data, this is optional. Many of these add-ons allow people NOT owning CC3+ to install them just for the artwork, and in that case, it will install that artwork into documents. There should be a checkbox to just turn off installing that extra copy altogether during the installation. Just turn it off, and it will just install the standard copy for use with CC3+ in the ProgramData folder.