A couple opf things:
Pocket Plus isn't made by SBSH
Can you post a screen shot - sp we can see what you mean by not many tasks - there are a number of ways to get more info on the screen - and if we/ I can see how you currently have it set-up I can be of greater help.
With regard to the appointment - do you Category filters set-up? I would think that it is not being shown as the category you assigned (or none) isn't included in the filter you have showing in PB.
Also what calendar do you mean when you say "no color change"
Hopefully we can help you out.