This is what I get when I try and install it:
# ipkg install fbvncserver-slc7x0_0.9.4_arm.ipk
Unpacking fbvncserver-slc7x0...Done.
Configuring fbvncserver-slc7x0...tar: Cannot create directory `./opt/QtPalmtop/\': File exists
tar: Cannot create directory `./opt/QtPalmtop\': File exists
tar: Cannot create directory `./opt/QtPalmtop\': File exists
tar: ./opt/QtPalmtop/bin/vncserver_up.sh: input/output error -- No such file or directory
tar: Bad tar header, skipping
tar: Cannot create directory `./opt/QtPalmtop\': File exists
tar: Cannot create directory `./opt/QtPalmtop\': File exists
tar: Cannot create directory `./opt/QtPalmtop\': File exists
tar: ./opt/QtPalmtop/apps/Network/start_fbvncserver.desktop: input/output error -- No such file or directory
tar: Bad tar header, skipping
tar: Cannot create directory `./opt/QtPalmtop\': File exists
tar: Cannot create directory `./opt/QtPalmtop\': File exists
tar: ./opt/QtPalmtop/pics/vncserver_up.png: input/output error -- No such file or directory
tar: Bad tar header, skipping
tar: Bad tar header, skipping
tar: Bad tar header, skipping
tar: Bad tar header, skipping
tar: Bad tar header, skipping
tar: Cannot create directory `./opt/QtPalmtop\': File exists
tar: ./opt/QtPalmtop/pics/vncserver_down.png: input/output error -- No such file or directory
tar: Bad tar header, skipping
tar: Bad tar header, skipping
tar: Bad tar header, skipping
tar: Bad tar header, skipping
tar: Bad tar header, skipping
tar: Error exit delayed from previous errors
Done.