For some reason the parted library Converter is using does not detect properly your hard drive. The idea is to try to replace the parted library coming with Converter with the one you have on your Linux server.
There are a couple of archives in Program Files folder, where Converter is installed. You need to copy to the Linux server the one that matches your architecture, extract in a temp location, replace the parted library in the temp folder with the one that is on your system (keep the original name though), re-create the archive and put it back at the original locatio on Converter Server machine (keeping a backup copy of the original archive).
There is more information about the procedure at http://communities.vmware.com/message/1837992#1837992 and http://communities.vmware.com/message/2181985#2181985.