Ah, one changes your BootSkin the other changes your Logon

I think maybe a visit to the WinCustomize Wiki may help you understand the differences in the programs some.  Here is a link.  http://wiki.wincustomize.com/wiki/Main_Page

You might also want to chck out the product page for Stardock.  https://www.stardock.com/products/

After going through those two links come on back with any question you still might have. 

BootSkin Pro allows you change your Windows Vista bootskin, and LogonStudio Vista allows you to change the logon screen which appears after Vista boots.

IconPackager allows you change your entire set of Windows icons (and individually as well) at one time by using "packs" of icons.  IconX enhances existing icons with things like effects and labels.  Although I think development has been halted for Vista, but I could be incorrect.

Think of MyColors as an "all-in-one" solution for changing your desktop.  A MyColors theme will typically include a visual style, icons, wallpaper, and desktop gadgets.  This is a great solution for anyone, but in particular people who don't know much about customizing desktops, or don't want to download individiual pieces of software.

Object Desktop premium suites are just that....premium theme suites.

Theme Manager is an application which ties many pieces of software together.  You can apply .suites and MyColors themes, from it, or apply individual skins. 

WindowBlinds is an application that changes your Windows visual style.  It changes the complete look and feel of Windows.

These are two different things.  WinCustomize is a website where you can download a huge variety of skins for most of the applications mentioned above.

Impulse is Stardock's new digital distribution application.  With Impulse, you can purchase, download, update, etc. applications and games.

Here are a few links to get you started:

• https://www.wincustomize.com/Articles.aspx?aid=308234
• http://islanddog.impulsedriven.net/article/148571/Windows_Themes_Ready_to_Change_Your_Desktop_Theme
• http://islanddog.joeuser.com/article/326193/Screencast_Impulse_Interface_Walkthrough
• https://www.wincustomize.com/Articles.aspx?aid=329205

Thanks for these replies. I've been a long time user .... but always kind of confused lol. These are very straightforward explanations of all the options. thank you!