Some suggestions of programs
hope I understood correctly what you're looking for, but as a first suggestion:
1) a kind of Project? Try Planner at live.gnome.org
able to do Gantt chart, and starting to have good reliability.
If you want a time tracking tool, Linuxes come generally with Karm, an accessory for time tracking.
2) Don't know that program
3) I like Evolution. Contains a great calendar and memo for diaries. Are you trying to do a weblog locally?