Note that if you bough a level that don't include CC3+, you won't have a program at all, but you can use the artwork installed by the collection in other programs.

Tools menu -> Options -> Pick cursor aparture

Usually blazing fast for me. The downloads are hosted using Amazon's storage services, so there should be plenty of available capacity for the hosting server/datacenter. Testing right now, and it gives me a decent 32MB/s (= 256 Mbit/sec)

This happens because CC3+ uses the symbol name as an identifier. Symbols are only defined once in each map, and each time you place a copy, it is just a reference to that definition. Unfortunately, since the name is the key, when you place the new cliffs, it finds the original cliff symbol in the map and uses that.

To work around this, do one of the following:

• If you don't have the original cliff symbol sin your map anymore, you can purge the definition using the symbol manager (from the Symbols menu). Just hit the purge button, and it will purge all definitions from the map that isn't in use. If you still have the symbol in the map, but want to remove it before placing the new one, you can also find it in the symbol manager and delete it (it will only delete it from the current map)
• If you wish to use them side by side in the map, you need to rename the symbol already in the map. Use the symbol manager for this, scrol down and find the offending symbols, select it, and hit the rename button. Now the new cliffs should be placed fine.

The reason they are using the current fill style instead of the one the tool should use is because that fill isn't in your map.

And by your own words above, you used a new Mike Schely Overland, but the tools you are showing in your screenshots are the SS4 Schley Dungeon tools. If you wish to use the dungeon tools, then you must also import the correct dungeon fill styles, not the overland ones.