Connect your Sony Ericsson phone to the PC with USB cable and select "File transfer" mode on your phone.
Your mobile phone Followers apps will appear as a new removable disk on your PC (Go to "My computer" on your PC to see that). On your PC: Go to "My Computer", you will see 2 new drives (Phone memory, Phone card); one of them includes a directory named "Other", go to "other" directory.
Open another window on the PC with the folder that includes the application file that you want to install and copy the application file (with html extension) to the folder "other" that you just opened on your phone. Disconnect the USB cable.
On your mobile phone: go to "File manager", go to the folder "other", go to the application file and press on install. You will be asked where do you want to install it, choose "games". The application is now installed and ready to run on your phone. Go to your games on your phone and run the application