Thanks lardman, the FAQ did the trick. For the record, here are the relevant links:
Here is my experience:
I donwnloaded the ipks from hancom.com and tried installing only hancomsheet. It installed allright but would not run. Turned out the .ipk does not contain library files! This is peculiar since both the hancommobileword and hancompresenterviewer .ipks do contain them.
I tried installing hancommobileword but ipkg choked, saying "no architecture defined". Turned out the control file contained an empty line! I fixed it, ipkg still bombed with "couldn't find package hancommobileword-etc."
I tried installing hancompresenterviewer with exactly the same results.
Finally, I installed hancomsheet, manually extracted the libraries from the hancommobileword .ipk and placed them in /opt/QtPalmtop/lib.
hancomsheet still won't start when I tap it. When I run it from the console it starts about half the time. This is not workable but fortunately I found a way around it.
I managed to save an almost-empty spreadsheet during one of the sessions. Now when I tap on the spreadsheet's icon in the Documents tab, the sucker runs every time!
Hope this helps someone :wink: