I don't have a wm2003 HTC device to look at, but on my HTC wm5 device the camera shortcut on the start menu points to " \Windows\Camera.exe /i " which is a large file when compared to most the other applications. In fact, "camera.exe" is the largest application (388kb) with "CommManager.exe" being the next one down (307kb).
Our devices are so dis-similar (different generation HTC devices) that posting the camera.exe from my phone probably wouldn't be useful.
Smeg's idea of finding a ROM to flash for your phone is the advice I'd follow.
Devices: T-Mobile MDA (Cingular SIM), i-mate SP5m (sitting in a drawer at the moment while I attempt to migrate to PPC permanently), Cingular 3125 (unlocked and in use on T-Mobile), Motorola MPx220 (retired), Motorola MPx200 (retired)
Accessories: Plantronics Explorer 330 & 2G Patriot Micro-SD (use w/MDA), Kingston 2G mini-SD used in SP5m, Plantronics Discovery 640 & 2G San Disk micro-SD (use w/3125), Jabra A210 BT adapter + Motorola HS805 (retired)