Can i get ios5 instead of ios6?

Iphone 3gs currently on 4.1, i want the jailbreak, so need to keep to ios5 for now, how do i do this without getting the full 6.1?

Download the ios you want from a website here http://www.felixbruns.de/iPod/firmware/ and then hold shift and then update in itunes then a window will pop up and then locate the ios file then click ok: D should not have 5.0 after you do this. I tunes will notify you that there's an update just ignore it for now.

Ffirst of all download tiny umbrella goole it and save your shsh files
after that download your firmware at http://www.felixbruns.de/iPod/firmware/ then download sn0wbreze from ih8snow do a cutom built ipsw with your shsh blob stitched after that click start>run>and paste this>. :\Windows\System32\drivers\etc\hos… Open with note pad then paste this 74.208.10.249 gs.apple.com click save then your ready to go if you want you could turn on tss server on tiny umbrella ps your custom firmware will have cydia installed already.