xanxion, i checked them out, and they are actually pretty basic saving out to database (but i will post them later), most of the work happens at construct level , this was even before there was a save system, so what i did was iterate every object and made a string with coordinates|angle|extra, something like where || is a new object, then i could "simply" save this string out to a database as a level entry, i did that by get url, something like this
save.php&lvl=1&data=320|500|90|2 || 320|500|90|2
not sure how i would do it now,... probably parsing a json file