One Can Install Themes In His/Her Micromax A70 By Following The Steps :
1.> Enable USB Debugging From Settings -> Applications -> Developement
2.> Download The Driver From Here
And Extract The Files.
3.> Connect The Phone to the computer, point the found new hardware wizard to search for the drivers in the folder in which the drivers were extracted(Do Check Include Sub Folders).
4.> After Installation Of Drivers gets Completed disconnect the phone and Download The 91 PC Suite for Android From Here
5.> Install The 91 PC Suite and reconnect the phone.
6.> The Interface will be in chinese, to change it to english click on the white android phone on the upper left corner of the 91 PC Suite Windows, Point To The Third Option in the list and click on english.
View This Image, If is not understood (http://www.imagehousing.com/image/850464)
7.> Restart 91 PC Suite.
8.> The Pane in the left lists all the operations that can be performed by the user like installing apps, installing themes, file manager etc.