These are the results of my test:

a) When I load photos of:

JPEG, 640x480 and 115K bytes

WORK

The system works well including after SUBMIT. The loading is fast because of the small 100K size

b) After that I test photos of:

JPEG, 800 x 600, 250K bytes

WORK

The system works at a slower speed (expected because the file is twice as big)

c) After that I test photos of:

JPEG, 1024 x 768, 280K bytes

WORK

The system works at a slower speed (expected because the file is big)

The conclusion is that as long as the size is in the 200KB it does not matter what the original diemnsions are:

640x480 to 1024x768

However when I load size of 2MB, the system does not like it. So for now, we do not worry too much about big sizes. I will continue to look for install software that will do the conversion from Megabytes of data to Kilobytes of data