From what I can understand, it's crashing at start while trying to
display the splash screen (actually, while trying to load the Quartz
Composition that makes the splash screen spiffy).
Please try running it with debug mode enabled, eg going in Terminal
and running this command :
verbose=1 QSDebugRanking=1 QSDebugMnemonics=1 QSDebugPlugIns=1
QSDebugStartup=1 QSDebugCatalog=1 NSDebugEnabled=1 QSDebugMemory=1 /
Applications/Quicksilver.app/Contents/MacOS/Quicksilver
NOTE: It's an one-liner.
This will output some additional info which might (or not :( ) relate
to your bug.
HTH.
