Minus world in Allstars SMB?

[Mike]

I always heard that (for SMB Allstars) Nintendo fixed the graphical glitch that allowed one to get through the wall (and on the way to the minus world) at the end of 1-2 but the other day I tried it out of boredom and I found that it was just as easy to get through the wall as before except when I went down the pipe I got to world 4-1. Did they completely take out the minus world or not? My friend claims to have gotten into the minus world by continuing to 4-1 and jumping over the flagpole at the end of that level. I tried for about 2 hours this afternoon and I could not get over the flagpole no matter what.