ymessenger Error: dependency not satisfyable libglib1.2

[imran_glt]

hi there

i am trying to install ymessenger on ubuntu 8.4 but when i click on ymessenger_1.0.4_1_i386.deb it says
ERROR: dependency is not satisfyable libglib1.2
but the package is install in may synaptic package manager

i dont know wts the problem

thanks in advance