The "track inspector" (they call it "track editor") is more important in Samplitude than the similar panel in SONAR is, as it's where you specify routing. However, you can insert effects and instruments without it. Once the track's been set up you'll rarely if ever need to reference it again and can simply hide it. (One of the first keypress customizations I made was making "I" the shortcut for showing and hiding it.) 
 
There actually is an fx bin in the track header, where you can insert, bypass, or open their UIs, just like you do in SONAR. 
 

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I found out the demo only runs for 7 days and then you need to register to complete the remaining 23 days. All the other demos I've tried have full 14 to 30 day grace periods.

The quick update was because there was an update just this week and the demo package probably hasn't been updated yet. Most vendors update their demos last.
 
The demo projects aren't part of the core install and have to be downloaded separately.

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