container.png - GPL - http://www.iconfinder.com/icondetails/6507/128/box_inventory_package_icon
clean.pnh - GPL - http://www.iconfinder.com/icondetails/55586/64/clean_icon
create_zip - Free for non commercial use - http://www.iconfinder.com/icondetails/49602/128/freight_packing_products_shipment_trucking_icon
delete.png -  CC Attribution Share Alike - http://www.iconspedia.com/icon/error-8022.html
diagram_container.png - Free for personal use only - http://www.iconfinder.com/icondetails/22923/32/charge_mobile_phone_icon
discovery.png - LGPL - http://www.iconfinder.com/icondetails/18213/32/find_magnifying_glass_search_zoom_icon
down.png - Creative Commons Attribution-No Derivative Works 3.0 Unported - http://www.iconfinder.com/icondetails/27880/32/arrow_red_up_icon
gui.png - Creative Commons (Attribution 3.0 United States) - http://www.iconfinder.com/icondetails/36141/32/layout_icon
hardware_periphery.png - ??? - http://www.balihotelsassociation.com/assets/images/i-mice.png
import_diagram.png - Creative Commons (Attribution 3.0 United States) - http://www.iconfinder.com/icondetails/36296/32/page_paintbrush_white_icon
import_script.png - Creative Commons (Attribution 3.0 United States) - http://www.iconfinder.com/icondetails/36401/32/edit_script_icon
install_applications.png - Free for commercial use - http://www.iconfinder.com/icondetails/56261/48/cabinet_card_file_icon
launch.png - LGPL - http://www.iconfinder.com/icondetails/4207/16/llaunch_icon
launch_on_clu.png - LGPL - http://www.iconfinder.com/icondetails/18507/24/add_agt_autorun_to_icon
multiup.png - Free for commercial use - http://www.iconfinder.com/icondetails/66997/32/up_icon
new_clu.png - LGPL - http://www.iconfinder.com/icondetails/1301/128/chip_microchip_processor_ram_icon
new_diagram.png - Creative Commons (Attribution 3.0 United States) - http://www.iconfinder.com/icondetails/36296/32/page_paintbrush_white_icon
new_script.png - Creative Commons (Attribution 3.0 United States) - http://www.iconfinder.com/icondetails/36401/32/edit_script_icon
plug_disconnect.png - Commercial: Allowed ??? - http://icons.lisisoft.com/icons-app/62507-connectivity-icon.html
send_zip.png - Free for non commercial use - http://www.iconfinder.com/icondetails/49602/128/freight_packing_products_shipment_trucking_icon
skins.png - Free for commercial use (Do not redistribute) - http://www.iconfinder.com/icondetails/47537/128/images_photography_photos_icon
up.png - Free for commercial use - http://www.iconfinder.com/icondetails/66997/32/up_icon