The quicktime movie file that comes out of photoshop will most likely be too big to upload to your blog (make a free account and upload your video on YouTube). In general your video should not exceed 200 megabytes.
Here is the way I recommend compressing your video for this project:
Use a video compression software such as iSquint (on the mac) to reduce the file size. On the PC I am less familiar but it seems like a program like Hamster will reduce the size as well.
If using iSquint make sure to keep your video at the same width and height (click "advanced" in iSquint to see those settings). After you make sure your dimensions are correct set it to "Optimize for TV" and slide the quality slider all the way to the right. You are now ready to upload your video.
All videos will need to be uploaded to Vimeo or YouTube and posted on your blog before the start of class on Thursday. If you need help embedding a Vimeo video please see this quick guide.