Anyone else have trouble getting Jivetalk 1.05 to work with OS 4.5?

I get an uncaught exception whenever I try to launch it.

Name: NullPointerException
GUID: 9c3cd62e3320b498
Time: Jun 08, 2008 01:26:55
No detail message
JiveTalk$2dBlackBerry$2dpearl-2
TitleBar
showNotify
0xC4FB
JiveTalk$2dBlackBerry$2dpearl-2
RosterListCanvas
showNotify
0x7F4C
net_rim_cldc-2
Display
switchDisplayables
0x2C07
net_rim_cldc-2
Display$SwitchDisplayablesRunnable
run
0x318E
net_rim_cldc-5
Application
dispatchInvokeLater
0xAAC
net_rim_cldc-3
MIDletMain
dispatchInvokeLater
0x511C
net_rim_cldc-5
Application
processNextMessage
0x123D
net_rim_cldc-5
Application
enterEventDispatcher
0xA51
net_rim_cldc-3
MIDletMain
main
0x539E