I want to replace my default OS (Asha Platform 1.0) with any Android version. Can anyone help me with information on where I can download an appropriate version of Android and instructions on how to install it?
Anroid install oprating system
hardware requirements do not match android requirements to be installed.
[ROM][4.2.1][Update 2] Android on SD Card - S8500 [08.01.2013]
Introduction to Firefox OS
1) CPUminimum ARMv6, Recommended: Cortex A5 class or better
ARMv7a with NEON
2) GPU: Adreno 200 class or better
for compatible device see here
Installing Firefox OS on a mobile device
No it won't work. This phone does not support Android OS and it has only 64MB RAM, which is too low even to make it run barely usable.