If you are using Truecrypt 5.x on your PC and have built crypt files with 5.x, those will NOT open in Truecrypt 4.3a (which is what I use in EasyCrypt). This is because Truecrypt 5.x uses the newer XTS mode of operation, which cannot be opened by 4.3a since 4.3a only understands LRW.

If you're using 4.3a on your PC and those crypt files still can't be opened on your IT, then there's something else going on that needs to be investigated.

As far as root access to the mount, EasyCrypt, in theory works like this:

If you mount an msdos or vfat file system crypt file, truecrypt mounts it with user mode (-u).

If you mount an ext2 or ext3 file system crypt file, truecrypt does not use user mode, but rather does a chown user.users on the mount point after it has mounted the crypt volume.

When your crypt volume is mounted and if only root can write to it, drop down to an xterm and let me know how it's chowned. As user, are you able to chown it to user.users succesfully and then write to it?