Dear Nine10,
I'm a bit confused here... The top post I mentioned is your first post in this topic. So I thought that you got it working all right. I followed those instructions and downloaded the Half Life mod from your link.... The pak1.pak that I use is 32.7MB too. So I'll guess we're using the same pak1.pak.
In Dingux there is a "terminal". After Half Life crashes, watch the messages on that terminal (you may need a magnifying glass

). When it didn't work for me I noticed that the terminal complained about not finding pak1.pak. Wait: all of a sudden I see Zear reply above. Indeed: that might be a problem for some of us. I use Linux to connect to my Dingoo, so all my text files use the Unix endline characters I guess.
I installed Dingux via
this post in this forum with Toddlers image, version 0.28. And I use Dmenu 0.3.
Good luck

P.S. Added my Half Life shell script and my
/local/dmenu/themes/Base/menu_ports.cfg file.