PocketPC Emulation Help

Hi, I was trying out a few GBA Emulators for my Dell Axim X5, but none of them seem to work. I mean, I can get the program started, mess around with config and so on, but when I try to load a rom it just sits there. I've tried VBAdvanceSE, which just gives me a black screen if I try to load a rom, PocketAdvance, which gives me the message "Failed to Allocate Memory for ROM", and PocketGBA, which just shows me the Pocket GBA logo even after I tell it to load up a rom. Any help is appreciated. Oh, the specs on my Pocket PC are as follows:

Processor:Intel(R) PXA355
Memory: 63.33 MB
Expansion Card Memory: 256 MB
Processor Type: Intel XScale
Processor Speed 400MHz
RAM Size 64MB
ROM Size 48MB
ROM Version: A05

Thanks again for any help.