Version:           version 2.0 beta-2 (using KDE 4.1.1)
Compiler:          gcc version 4.3.0 20080428 (Red Hat 4.3.0-8) (GCC) 
OS:                Linux
Installed from:    Fedora RPMs

For example:

1) create a presentation with two pages with different content (so they can be
distinguished) which I'll call "slide 1" and "slide 2"
2) go to Slideshow->"Configure slideshow"
3) click "Edit Custom Slide Shows"
4) "Add new slideshow" and type "reverse"
5) select "reverse" and add slide 2, then slide 1 (so that the custom slideshow
has them in reverse order), then click ok
6) select "reverse" from the combobox and click ok

now the expected behaviour of "start presentation"->"from first page" would be
to show "slide 2", then "slide 1" then finish.

However kpresenter goes straight to the first slide in the main slideshow
("slide 1") and then finishes.
when i press <left arrow> to go to previous slide it does go back to "slide 2",
but it should have started there first.