You can. Infinite is =not= required to use dynamic cloth and hair from Poser. Mover 5 is all you need to enable this, and it works on any Vue version from Vue D'Esprit 4 on up; the caveat is -which- Mover 5 you use. Each version of Vue through Vue 5 Esprit has had a slightly different version, tailored to the Vue version you are using. What you buy from E-on is a liscence for the Mover upgrade. Mover 4 is the Mover for Vue 4, with an upgrade to Mover 5 folded into one of the program updates (it works, but can be...twitchy). Vue4Pro and Vue 5 both have a specific version of Mover 5 on the installation CD in the extras folder; if you use any Mover X besides the one on the installation CD, you get a borked install, and usually have to delete and re-install Vue to clear the damage (you enable that Mover install with your previous liscence number; If it is from Mover 4, you need to have the serial from the version of Vue you bought it for as well, as they are keyed together). Just like the purchased plants for Vue 4. VuePro, Vue 5, and Infinite, in that same extras folder, have all the species of plants available, but they are specific for -that version of Vue-, and are useless unless you have a liscence number to unlock them. Install a Vue 4 tree in Infinite, it be borked (although with vegetation you can delete the specific files and no harm seems done) Vue4Pro does excellent animation with Poser 5 content; People are obsessing on Infinite due to the better memory management and instancing. Infinite is less likely to choke on multiple Poser characters that Vue4Pro, but it's fairly easy to reduce the filesize from Poser (using smaller texture maps, for instance; Unless you are getting right into a character's face, a 3000x3000 texture map is a waste of RAM. The details are simply lost).