Vicious, man I shoulda seen this thread earlier cuz I woulda helped you through it without all the headaches. At least I see that you're learning. Neways, one of the questions you asked that never got answered was that NO, you cannot use the same 1mb bios on your 1.4 that your modding. You need it to be a 256k for 1.2 boxes and up. Since you got a modded box already, put the save hack to your hd using the regular msdash. Then ftp in and go to the directory and delete the bios.bin which should still be 1mb from your last mod and replace it with the 256kb one and name it bios.bin. Then put it back on your memory card and use it on the 1.4 box. That's where your flashing process got screwy when it said no file found or whatever. Let me know if you need any more help either on here or PM me.
Cobra, glad to hear you got your tsop flashed successfully. For bios unknown, that is normal if you didn't add the hash string for the bios you flashed in your evox.ini file. An easy way to get the hash is to get the xbtool app (runs on your pc) and open the bios you used to flash your tsop. You will see that hash string towards the upper portion of the screen. Click copy to clipboard and when you ftp into your modded box, paste it in your ini file and it will recognize your bios. PM if you need help.