Make your XP look like Vista

Hey, even if you can't get your hands on Vista until next year, you could still make your XP look and act like Microsoft's next OS.

I found lots of tools for converting your existing Windows XP Interface to Vista interface, the best and the safer tool is Vista Transformation Pack. I have installed it on many times on different machines and it worked like a charm, the only problem i faced was, after the "windows updation" some of the existing looks changed from Vista to XP, the main notable change is with the Boot Screen, it changed from Vista to XP.

Vista's new Aeroglass interface isn't just window dressing, it also helps you find data faster and move more quickly between open windows. Luckily, you can add many of Vista's shiny, bright interface elements to XP. For example, Vista will list a file's properties and other metadata in a pane at the bottom of Explorer windows. The freeware utility InfoTip Extension lets you beef up the pop-up info tips you see when you hover over a file icon, customizing the information that appears and even displaying the contents of a text file. Unfortunately, this utility was designed for older versions of Windows and a few of its features don't work in XP. Also, it provides no extra information for MP3, WMA, WMV and other music and video files (which arguably already have pretty good info tips). But, hey, it's still more convenient than opening a file's Properties dialog box.
Vista's new features will also show you a thumbnail preview of open files and applications when you hold the pointer over each taskbar button. Microsoft's Alt-Tab Replacement PowerToy already gives you the keyboard equivalent: after you download and install the program, simply hold the <Alt> key and press <Tab>, as you normally would to switch between running apps, and you'll see a thumbnail preview of each app in succession, though you won't see a preview if the app is minimized. If, for some reason, you don't want the Microsoft version, try TaskSwitchXP and Alt-Tab Thingy--two freebies that do much the same thing, and throw in some extra features as well.
For a very Mac-like way to switch applications, try the US$10 shareware program WinPlosion. As with Mac OS X's Expose feature, moving your pointer to a designated corner will cause all open windows to display in a zoomed-out view; click one to restore the previous view, but with the targeted window in front.
If you're looking for some of the transparency that Vista's interface uses, you can buy tools that apply various see-through effects to Windows (such as the US$20 Actual Transparent Windows from Actual Tools). But, why bother? Freeware can do most of the same tricks sans cost. If you want only your taskbar to have a degree of transparency, check out Transbar from AKSoftware. On the other hand, if you want transparency only for your application windows, the free PowerMenu not only handles that task, but also makes windows stay on top of all others, minimizes them to the taskbar with a single click and changes their processing priority to suit your preferences. If you want to apply transparency to windows and to the taskbar, Vasilios Freeware's TransApps can do both--but little else. Finally, the aforementioned Alt-Tab Thingy can ghost any inactive window so that it becomes partially transparent and also invisible to mouse clicks (the clicks pass through to whatever is underneath). The window returns to full opacity and normal behavior once it becomes active again.
To apply Vista's cool new glasslike sheen to your windows, look no farther than the granddaddy of skinning utilities, WindowBlinds from Stardock, or the equally capable StyleXP from TGT Soft. These programs cost US$20 each and offer a free trial. Last, but not least, you can obtain Desktop Sidebar, a free version of Vista's sidebar feature that displays weather information, stock quotes, RSS feeds and other timely information.