The patch is finally ready, and the bugs like crashes in starport menu are gone now. You can finally play Dune 2000 in hi-res, which makes selecting units and pending to the map a lot easier. Please note: in order to get both the sub-houses fix and the mission select mod working with the script, you should install both BEFORE you apply the high-res patch. It is also advised (according to the readme) to install the patch on a fresh copy of Dune 2000, without old hi-res patches or unfinished mods. The vanilla (original CD) version of Dune 2000 and the patched-for-multiplayer version (with Windows 7 fixes & IPX fixes) are supported. As of 1.4.0 there is also support for undoing the patch.
Update: 1.4.1 is now available, which adds acceptable 8-bit support.
Editor Note: Please note that this does not work with the CnCNet patch or the GruntMods Edition, as they use a newer incompatible version of the patching framework, which includes a newer version of the High Resolution patch that works with online multiplayer.