All .scm members from mozilla family works fine, but seamonkey.scm have some problem with dependencies.
When I boot minimal X/GUI configuration (without gtk2.tcz) and mount mozillla.scm with gtk2.scm dependency, it doesn`t work.
If I boot the same configuration with gtk2.tcz and mount mozilla.scm but without gtk2.scm , mozilla works fine.
It seems that in compiling process of seamonkey.scm in some way remained gtk2.tcz dependenciy, despite the fact that in normal installation process seamonkey.scm regularly load it`s .scm dependency !