If you get a dependency problem with ymessenger on debian ie.
debian:~# dpkg -i /home/harry/ymessenger_1.0.4_1_i386.deb
Selecting previously deselected package ymessenger.
(Reading database … 156541 files and directories currently installed.)
Unpacking ymessenger (from …/ymessenger_1.0.4_1_i386.deb) …
dpkg: dependency problems prevent configuration of ymessenger:
ymessenger depends on xlibs (>> 3.3.6); however:
Package xlibs is not installed.
dpkg: error processing ymessenger (–install):
dependency problems – leaving unconfigured
Errors were encountered while processing:
ymessenger
Convert the rpm to a deb package using alien as follows
alien -c /home/harry/rh9.ymessenger-1.0.4-1.i386.rpm
then
dpkg -i ymessenger_1.0.4-2_i386.deb