[Orgmode] ColumnView and DateFormat

[Memnon Anon]

Hi!

First things first: 
Org mode is great! 
Org is the reason I started using emacs a few months ago. 
Thanks for this fine software.

I am using the column view very often and added several columns to my
org-file using this line

,----
| #+COLUMNS: %35ITEM %4TODO %1PRIORITY %19SCHEDULED %10TAGS %5ESTIMATE{:}
|  %5CLOCKSUM
`----

I am still experimenting quite a bit and my question is:

Is there a simple way to cut the year out of the scheduled column?
Right now, it displays e.g. like this: 2008-10-10 Mi 13:15.
Can this be cut down to something like      10-10 Mi 13:15 ?
I do not plan years ahead ;)

And another question related to the Agenda View.

I dislike scheduling everything. I have got some Items I work on whenever I
need a break. These Items do not get a real timestamp because I can not say
before when I will work on them. But, if I do, I often spend some hours on
them. Of course, I still clock them.
Orgmode provides this nice timeline view, but this only displays tasks with
time-stamped items. Using column view, it provides even more useful
information. 
Is there a way to have a timeline that focuses not on time-stamped items but on
the clocked time? Thus showing me when and how long I actually worked on items
and not when I planned to do so?
Like 
Wednesday  22 October 2008
  Clocked 12:00-16:00: TODO Work on Thesis                     :UNI:LIBRARY:
  Clocked 16:15-18:00:      Read LOTR (again;)                 :HOME:
  Clocked 18:30-20:00  DONE Call Parents                       :PHONE:HOME:
  Simchat Torah


If I missed some crucial information in the org manual, a simple *RTFM*
is enough and sorry for the noise.
If anyone out there has a simple solution or a different "workflow" to adopt
and achieve this, your suggestion would be very much appreciated.

Thanks and have a nice day ;)