There are a lot of file explorers that you can download from the Play store that are hundreds of times better than the stock Galaxy S explorer. If you want a ROM with a built-in file explorer try CyanogenMod 11.
To see how much RAM is being used...
It is not advised to install the latest versions of CM (i.e. JB or KK) straight from stock because you might lose your IMEI.
The correct way is to install ICS first and the JB or KK.
Heimdall is good but for someone who never flashed a ROM befor...
It is really simple.
Do the following (assuming you want to install Cyanogenmod 9 (ICS)):
Download XXJVU (Firmware)
Download Odin 1.83 (latest supported version for I9000)
Make sure the Samsung USB Drivers are installed
im not getting anything on the COM port mapping.also,my computer doesnt make any sound when i plug my phone,like it used to do before flashing twrp.should i go back to stock or is this a whole different problem?
Make sure the Samsung USB Driver...
im trying to flash with odin,but i cant find any .ops in the cw zip.
i even tried downloading other cw versions,but none of them have .ops..
I updated my answer above.