Good question, but that's Media Player's problem that doesn't have an option for that. The Image Viewer application does have a "Save As.." function though. If you enable the import of received media it will save your media in the correct folder of your N900 (depending if it's an image, video or audio). The 0 in "automatic download media" will force you to press Download every time even if it's a tiny file. The cache folder is in /home/user/.yappari/cache