libqt-mt.(l)a and libpng.(l)a

I am trying to compile an application using Macports. The instructions are for Fink and Suse and ./configure fails as it canot locate "libqt-mt.(l)a" and "libpng.(l)a" which is to be found in qt3-devel and qt3-devel and libpng-devel in OpenSUSE 10.0 respectively. -lqt-mt requests file libqt-mt.(l)a

-lpng requests file libpng.(l)a

Any clue where these packages are to be found in MacPorts?