Both were updated in 4.6.1
tc@box:~$ scm-load 
Version 4.6.1
Usage scm-load [-b, -i, -w, -r] name{.scm}
  -i   Loads local extension
  -wi  Download and install extension
  -w   Download extension only
  -r   Unmount extension
Example usage:
 Load local extension:
   scm-load -i /mnt/hda1/tce/optional/tar.scm
 Download into tce/optional directory, updates OnBoot and installs:
   scm-load -w -i tar.scm
 Download only into tce/optional directory:
   scm-load -w tar.scm
 Unmount extension:
   scm-load -r tar.scm
tc@box:~$ tce-load
Version 4.6.1
Usage: tce-load [ -i -w -wi -wo -wil -ic -wic -wicl]{s} extensions
  -i   Loads local extension
  -wi  Download and install extension
  -w   Download extension only
  Adding -c to any of the -i options will force a one time copy to file system
  Adding -s to any of the options will suppress OK message used by appbrowser
Example usage:
 Load local extension:
   tce-load -i /mnt/hda1/tce/optional/nano.tcz
 Download into tce/optional directory, updates OnBoot and installs:
   tce-load -w -i nano.tcz
 Download only into tce/optional directory:
   tce-load -w nano.tcz