Hey, glad to see it works well. Making or changing a profile is pretty easy. Backup a copy of the mencoder.conf file in C:\Program Files\Tyrell\MCEBuddy\mplayer.
Use notepad to increase the relevant settings. Here's what I use to get letterbox video (i.e., it crops the sides). This is a modification of the PSP profile:
[PSP]
profile-desc="Zune 2 Cropped"
vf=pullup,softskip,pp=fd,scale=860:-2,crop=640:480,hqdn3d,harddup
lavdopts=threads=2
ovc=lavc=yes
oac=lavc=yes
lavcopts=aglobal=1:vglobal=1:vcodec=mpeg4:acodec=libfaac:threads=2
af=volnorm=2:lavcresample=24000
ofps=30000/1001
of=lavf=yes
lavfopts=format=psp
af=volnorm=2
#FileExtension=mp4
To increase a screen resolution, you just need to increase the size numbers. Try experimenting with a small 3 second clip (name it 123 so MCEbuddy transcodes it first). Just start tweaking the numbers in the PSP profiles to get it to what you want.