Im having the same issue with DNS-325_Plex_Package_vTransX.1_12222014 (80,699,138 bytes). Haven't tried 1.05 yet, but really wanted to test out the transcoding.
http://192.168.1.30:32400/web/
This web page is not available.
Is the default port still 32400?
EDIT: I have just installed 1.05, which seemed to work fine, but I am unable to watch anything on Plex Web now... I get "This media server does not support transcoding" for everything. I was able to watch these in Plex Web fine on 1.04. I am able to watch the same videos from Samsung TV and Xbox.
I also noticed that the settings "Direct Play", "Direct Stream", and "Allow Direct Play of AC3 Audio" are no longer available in Settings>Web>Player. I'm assuming this is related...
Edit2: I went back to 1.04 and those settings still aren't there, but I am now able to play all my videos successfully. Seems like there is an issue with the 1.05 installation; and TransX 1 still doesn't work (the web page is not available). I have installed 1.05 and TransX 1 multiple times to verify it wasnt an issue during installation, and each time it installed successfully.