I just found this amazing tweak program on http://majorgeeks.com. It is VistaTweakPRO and it is better than TweakVista. There is not a version for 5270 yet but they plan a super one. There are also amazing tweaks and tips on the siite!
VistaTweakPRO was designed for both beginners as well as the most advanced tweakers. For those who have used tweaking programs in the past, you will be impressed with the number of tweaks, tips, and tricks that VistaTweakPRO provides. Some key features included in this program are: "DWM Tweaks" (including some not available in any other program) such as enabling more creative use of animations, borders, and effects Miscellaneous tweaks for Vista, including the ability to add Administrator to the Welcome screen (with other users you created), removal of shortcut arrows, and to change Desktop and Start Menu icon sizes A series of "How-Tos" with pictures: using Virtual Folders, how to Magnify Images, use the Solutions Panel and new Start Menu Plus much more!