How secure would these paper wallets be?!

[jimmypagey]

    I have bitaddress 6.2 saved on a USB unused from 2 months ago, is it safe to use for creating BIP38 encrypted paper wallets or is it pretty updated since they have release 2 new versions since then? what are the new update differences anyways? I'll be storing lots of bitcoins on these paper wallets and it would be generated offline on Ubuntu 13.10 off EPI booting a USB is that all safe and secure? or is there a possibility of this saving into the hard drive memory even if your "trying Ubuntu" on the new MacBook retina pros that use a different type of hard drive? P.S I just bought this MacBook pro so it has NEVER ever been connected to a internet connection yet, just created the USB on my old MacBook off ubuntu

[Cubic Earth]

You are thinking along all the right lines, but my personal opinion is that older stuff tends to be more secure, or at least easier to understand, and therefore, to use securely.

My suggestion is to buy a cheap Dell laptop for $100 and just remove the hard drive and wireless card.  I wouldn't say your method is airtight, but using an old Dell as I have described would remove at least two possible attack vectors that, however unlikely, are still present it the scenario you presented.  Yes, of course something could be retained on you MBP hard drive, and yes, it could be transmitted when and if it ever does connect to the internet.  And if it has a built in wifi module, it could theoretically connect to a network even without your knowledge or consent.

[jimmypagey]

So I shouldn't download the new 6.6 bitaddress to create paper wallets then?  Is there a possibility that these bit address paper wallets will ever glitch or be outdated in the future and not work? for each BIP38 batch I create on bitaddress 6.2 should I take 1 wallet out of each 3  and test it to see if a small amount works on it, or is it possible this may compromise the rest of those paper wallets created in that batch of paper wallets? or are all of them generated completely secure and random that can never be linked similar to another wallet in that batch? I saw somewhere they said the page of bitaddress doesn't use something called secure random and all of them are similar or something like this? not too sure though, sorry for the long questions. also wondering, when I downloaded the github and put it on the usb there were like 5 files, One with the bitaddress HTML and then info for JavaScript and things like that, do I need to pull all of them off the usb for it to properly work or just drag the one HTML file off then disconnect the usb?? Thanks

[btcmonster]

Its the best u can get :/