Screen 3.5" QVGA LCD (£")x240) / 65,536 colours
Missing info about resolution, probably 320x240, cause it's 3.5".
Can you access to windows ce of your device ? If you can access directly to win ce of your device, with file explorer run directly QUE.EXE from your SD CARD, and see what's happen, post here results..
Another thing, check how is your SD CARD recognized by your device, like Storage Card, MMC, SDMMC, etc ? Then i'll can tell you what version to use, cause if sd card is recognized diferent than SDMMC, you'll have to edit path in your que.exe with some hex-decimal editor... For resolution 320x240 you'll have to use corect QueBmp file, some of release has inside more QueBmp files, you'll need one with name QueBmp320 , and just rename it QueBMP240.dll
try this version for win ce, and like i told above, first try directly to run QUE.exe
[Please Register or Login to download file] It's doesn't matter that you can run other gps softwares, garmin isn't same like other gps softwares, specially cause this is cracked version, remember that's not oficial garmin version, cause garmin didn't make ever garmin xt for win ce!
When i find more free time, i'll can help you more, for now check these thing above...