READ COMPLETELY BEFORE YOU TRY.

1.    unzip IE7-WindowsXP-x86-enu.exe using winrar
2.    replace iecustom.dll in the update folder inside the unzipped folder with the one provided.
3.    Fm inside of update folder, click on update.
4.    AT THE END OF INSTALLATION CHECK ' D O N O T   R E S T A R T  W I N D O W S  N O W '
5.    Install XmlLiteSetup.exe  
6.    Install NlsDl.exe
7.    Install IdnDl.exe
8.    After all the above installations are complete, Restart your computer.