I have imported dynamic clothes to Vue 4. With Mover 5 of course. But dynamic clothes are highly related to Poser 5. So there are often problems when you export that from Poser and import it to any other program. My feeling is, stay with Poser 5 for dynamic clothes animations. If you do that semi-professional and you do have already Mover 4 i would think it is not a big deal to invest in that little money and try it out - the best and only way to find out wether it does what you need it for.

One day your ship comes in - but you're at the airport.