yes, thats ok with me, if I am working with theme, but i wont to develop a theme that will use more than 1 person, let's tell about 100 peoples, so going to each ftp and modifying each theme would be a lot of job to do. I tried some api (Original Plugin & Theme API by Kaspars Dambis) and the new theme overwrites the whole folder, deliting any files what was there.
May be there is some way doing these, but only inside the themes folder ?
for ex: in themes folder i'll have page,singe atc. files and /functions/ folder that needs to be rewriten totaly. is it posible to do that ?
Better would be if i could replace the files that i have in new themes zip, but if thats really inpossible than the seccond solution i think should work.
By the way, how wordpress it self is updating ?? if i update wordpress then my themes and folders don't delets!!