No Firmware On My Tablet. Help!



I have a Sylvania Infotcmi SYNET7LP Syntabex7-2 tablet with NO firmware on it, and I cannot find the firmware I need to install on it. I have a MicroSD card but don't know how to make it bootable (I ruined my cell phone reformatting the SD card so this is very important to me). Please help me:

1. find the proper firmware for my device
2. tell me the process by which to install it via SD; and
3. tell me how to get the SD card to boot for the image installation.