This turned out fairly good. Great job, keep it up!
Did you use the converter to create this SWF? Also, did you double check your render settings for your original source and kept the same fps?
Another way to get a better quality render is decide the resolution you want to use for showcasing your turntable, for example 1280 x 720, then in your program, render the video out at 1.5x to 2.0x that size, so 2560 x 1440. When you do the conversion, have the source re-size back down to 1280 x 720. This will give you a much crisper quality.
it was all going good for me until my flash stop working and giving Crazy errors. When i do an animation like this the best fit for this website is 1280 x 720 this is 1080 x 1080 Because it's a small person and all that extra cam space would be wasted / bigger file size, that program does work but my blender crash every time i start a video render so yeah, that program works tho.
Well i been doing 3d for about 1 year it took a few month (for me ) to stop raging to remember the things i need to remember. I will tell you this nothing in 3d is Instant even if people download mmd models they still need to take time to dress it up / render ect, i was going that mmd path but you get a better feeling when you make something from 1 vertex.