Follow the instructions to use Folders on Windows Phone 7.5 Mango. Before following this tutorial you should make sure that your device is developer unlocked

2.  Last week, one of the most exciting demo was revealed
displaying Folders on Windows Phone. While Android
and iOS owners like the folders option for their
devices, Windows Phone owners are yet to enjoy it.
Folder option became so demanding that developers
have to release it for a general public use. Prior to now,
we mentioned an idea which brings the same
functionality to WP .

4.  any other homebrew app, Folders likewise need surely
have developer unlocked Windows Phone, which can
be achieved using chevron (it may come soon at $9)
unlock too l. While we're talking about this application
then it is a fantastic start for WP users since they
would love to do away with some applications from
start menu to raised organized folders.

5.  Android and iOS owners contain a freedom to group
the applications or games based on category into
single Folder.For example all of the internet sites apps
is going to be under ‘Social folder’. Now, similar
operation can be executed (but in a little more
restricted manner) on Windows Phone in addition.
This homebrew application is released today after it
saw a greater demand through the community users. It
was initially demonstrated a week ago on XDA forum.

6.  The homebrew application—named as Folders for
Windows Phone Mango –has been developed by the
people over at Windows Phone Hacker. Even though
this rentals are seems quite useful yet it has few
stumbling block before it basks in whole glory.They in
addition has outlined the reality that it's not at all as
foolproof as they would've liked so that it is. The
down-side with the application is you need Folders
Config desktop application everytime you have to
adjust something. It will do this functions

8.  Add Folder to the List
 Add applications into the Folders
 Follow the instructions given below to add Folders to
Windows Phone Mango

9.  Note: Before using this tutorial you have to make sure
that that your particular device is developer unlocked,
otherwise you won’t be capable of deploy XAP file for
your device.
 Step 1: Download the foldersconfig file from here
 Step 2: Extract this zip file and run FoldersConfig.exe

10.  Step 3: Create a new Folder and add several application
as you may want
 Step 4: Before adding the application you need to do
an instant marketplace search to be able to add this
application in your device.
 Step 5: Connect your phone and sync it with Zune, put
it on the start screen and press Deploy

11.  Step 6: An application commence with your Folder will
be upon your phone with listing of your folders (if
there is multiple folders put together by you)
 Step 7: Simply tap over a folders and pin these to the
start screen
 That’s it!!!

12.  Remember, you should utilize desktop
FoldersConfig.exe file each time you ought to adjust
something in folders. It is little bit annoying, but we
will have to live with it until and unless Microsoft
provides us a simple way to implement it.