Hi there, we want to know an important thing about picasa API. we are accessing our pictures by requesting album feeds, saving them to xml, then parsing the file for the links in them to access each picture in each album. but we are not sure about one thing. As we have seen, the URL links to these pictures come to our xml file as if they are generated instantenously and temporarily. I am not implying they are, but they just "seem" like(by looking at the random looking numbers at the end of the picture names etc.) The question is, can we rely on these links? I mean, can we safely use these links and treat them as they are permanent and ensure that our clients or visitors wont face any dead links?(if the answers are "no", can you please tell us a better way to do all these things? please assume that it would be too hard for us to create new xml files for each user/visitor instance.)