Need help importing heightmap

[:1]After making my heightmap symmetrical in Photoshop, I can't find any way to import the new heightmap back into the editor.
Halp? ):|||Shameless bump for great justice.
And because I still need help. >.>|||Instead of using Photoshop you can use this handy tool made by AngryZealot.
Supreme Commander Map Symmetrizer
viewtopic.php?t=19498
I've used this program for most of my maps (very very few released), and it also makes it easy to make the texture/stratum maps symmetrical.|||Paceydre|||Start the Official Editor, Load your map, press the "P" button and there you'll find the option to import your edited Heightmap.