tiago, thanks for the new version, got it and tried it. Good move with the colour thing on multi-select for album assignments.
Success: 
yayy I succeeded in putting photos into mTrip created albums and mManager created albums, and mManager is managing them all together
Bug: The first few hundred of photos in the list index, when i click on them, this comes up @List index out of bounds'. And these I can't send to albums.

That screenshot shows the last one on the list that gives that 'out of bounds' thing.
From the next one, and for the rest of the list.....no 'out of bounds' error...See >

Any ideas?
Q1? What is this panel circled in red, for? What happens if I leave any boxes unchecked before Save?
Q2 Not essential as it's good you've kept the application small/lightweight....BUT...any chance we can flick from the single photo view panel to a multi thumbnails view panel as well, like in mTrip?
SUMMARY so far:Pros: With mr500 in cradle/usb connected to PC, you can make and name however, your photo albums whenever you want. Cuts down on photo synccing time
immensely compared to mTrip. If you also have linux-opie on your mr500, it doesn't cripple the linux each time you sync which used to mean redoing the svg files to reenable linux. Oh yes, I think just like syncdrop for music,
you can manage from any PC. The mManager exe just sits in your mrobe drive for whever you need it.
Cons: So far very few, apart from if you have been mTripping so far, in which case you have to reassign all your photos to albums via mManager again (ie the albums from mTrip are there still but they get emptied the first time you do mManager). No album art support, yet. No multi-thumbnails view like what mTrip has. The bug that I mentioned above is a medium sized con for me at the moment. ie I have several hundred photos at the start of the list which is 'List Index Out of Bounds' error. These it seems I can't assign to albums. I could always delete them and try readding them from the PC via mManager and see what happens....but maybe tiago can tell me what I can do to remove this bug, so i don't have to readd from PC. Until tiago responds on this, I'll wait a couple of days, ie I've used the configuration tool to go to 'Last Saved BackUp', Photos ticked and restore...and I got my Mtrip folders WITH photos back in them as before using mManager. So, the backUp/restore function does undo your last mManager photo sync, which is verty useful at this time of beta testing.
This will be a truly awesome alternative once music synccing is enabled (and maybe Remix). It can be a music and photos/photo albums synccer, but fast, unlike how I find mTrip.
cheers, and, yes, this is all very exciting,
tackling photos/album/synccing time for the mr500, an alternative worth its weight in gold so far.
merge EDIT...........................
tiago, next mManager 'bug' if you want to call it that:
1. I used mManager to add photos to the mrobe 500 from PC. The photos had been sized down to 320 pixel wide by 200 something height.
2. They went in to the mr500 but they were all only one quarter of the screen, at the top left.
3. I'd figured out before that the mr500 can show 320 pix wide photos full on the screen OK. Using all 320 wide photos means that I can store a ton of photos on the mr500. I do have tons, hence the need for album capability which the mManager has. It would be great if mManager can bring 320 pix wide images into the mr500 full screen. At the moment I can't do it with mManager.
4. I have now switched back to mTrip and managed to get those same images in full screen.
jam
jam