...Did you make me feel short next to the Commonus on purpose? (huffs)
That said, that was great. So the DIALOGUE won't work for my ZDoom maps?
-Uh... Intel two core E7500 @ 2.97 GHz, 2GB ram, 1 terabyte hard drive, Windows 7. (Crummy windows 7.)
-How does Slade's work? I'm not good at learning new tools.
- I changed the scale of the commonus while I was working on it because I wanted a visual indicator that the DECORATE code was actually working and I didn't do something stupid like replace the wrong actor
- NOTE: for some reason, this strife dialog setup does not work at all in Zandronum. That might be a Zandronum bug, because I think Zdoom 2.5.0 had that feature.
Using Slade:
1. Open your wad file, do file -> open and browse to the wad you want to open
2. Double click on the MARKER of the map you want to open

3. You'll see a popup, make it look like this:

click OK, then the map editor window will pop up
... after that I have no idea. I use Doombuilder 2 for maps, I just use Slade 3 as a "lump" editor (i.e., to add sprites / textures and edit DECORATE, stuff like that). In my opinion you should try Slade 3 as an alternative to XWE, I find it to be a big improvement.
Slade 3 has a wiki:
https://github.com/sirjuddington/SLADE/wikiEDIT: Scratch that, I'm not sure if even Slade 3 can edit Strife Dialog; I guess plan B is to manually edit the DIALOGUE lump that goes with the map, it's not as convenient as how I would do it normally but if you're careful it might just work.
EDIT 2: What error message did you get when you tried to run Doombuilder 2 and it failed to start?