well 'Irfanview' doesn't work on a mac, ya may try 'Gimp' which is also available for Mac OS X ... 'Paintshop Pro' doesnt work on a mac either hmm... anyways, i make the thumbnails in photoshop, with the 'Marquee Tools' i select the pixels which are 200x200 and copy them, then open new file, and save it as a WebPage Image, with which ya can chose how big it will be in quality OR i open ImageReady, use the 'Marquee Tool' and select and copy the pixels of 600x600, then open new document, paste, then resize it too 200x200, then Save Optimized As ... you can change the quality of that thumbnail and the file grows smaller OR use FireWorks to make your thumbnail If you have any other questions for the Macintosh feel free to message me Harmen