sorry for the bad audio i lost my good mic and i had to upload this bare with me guys links down below
links 4.2.1 original firmware
http://www.felixbruns.de/iPod/firmware/
custom firm ware 3gs
http://www.2shared.com/file/nMOo15cD/iPhone21_421_8C148a421Custom_R.html
Or
http://www.megaupload.com/?d=6JVZF92E
or try
http://jump.fm/VTEUX
custom firmware 3g
http://www.megaupload.com/?d=681MCLXO
OR
http://www.4shared.com/file/ZAMVoyk7/iPhone_3G_Custom_Firmware_421_.html
OR
http://thepiratebay.se/torrent/6014146/iPhone_3G_Custom_Restore_Firmware_4.2.1_8C148_ipsw
*USE UTORRENT
redsnow PC
https://sites.google.com/a/iphone-dev.com/files/home/redsn0w_win_0.9.6rc16.zip?attredirects=0&d=1
redsnow MAC
https://sites.google.com/a/iphone-dev.com/files/home/redsn0w_mac_0.9.6rc16.zip?attredirects=0&d=1
forum where i got this from
http://forum.gsmhosting.com/vbb/f456/3gs-1015-error-fixed-successfully-1152179/#post6630354