Ok the last part of the process.
Now you want to put the games inside your phone. So first, make sure you have the PSX4Droid or FPsE installed together with the bios. The link has be given so go check it out.
For SGS users, make sure you set your USB settings to MASS STORAGE. Go to Settings>Wireless and Network>USB Settings>Mass Storage. This will open your phone's storage files.
First, connect your Android to the computer using a USB cable provided during your phone purchase.(If you don't have one, you should buy it, comes in very hand sometimes). There, the phone will show the USB connected and a button saying 'Connect storage to PC'. Press it. You PC will scan the storage files.
At the PC, click open files using Windows. You will get 2 different file storage. Mine was Drive F: and G:
The one with a lot of files is the internal storage file. This is the place where the emulators will find the games and start it.
Next, create a folder named 'PSX Roms' or anything that suits you as long you can find it. Then, transfer the games that you have downloaded and decoded into the file. It could take some time due to the large size of file.
Once that is done, Safely Remove hardware on the PC and Disconnect Storage from PC to safely remove the USB cable.
Then, open the emulator that you've downloaded(I used PSX4Droid), press the menu button and Settings. Press Bios to find and set the bios (it should be in .bin format). Once that is done, find the PSX ROM file and press the game that you want to play.
VOILA! You now are playing a PS1 game on the Android! SCORE!!