This is a nifty uploader when it works, but in its current form, I've found it badly in need of more work. It only works on one login on my Core Solo Mini, and not the one that installed it... and in not working, it causes the entire export dialog to not come up (bad!). For the one user that can use it, I've found that uploads of large batches of photos (more than 50) require quite a bit of babysitting, as upwards of 2/3 of the uploads will fail on the first attempt and require a retry.
Good idea, good GUI, but needs work and testing. I called customer service and they were spectactularly unhelpful... 20 minutes in and I still hadn't talked to anyone with a Mac.