If you are experiencing problem with APN or MMS after jailbreak your iPhone 3G or iPod Touch using Redsn0w 0.9.5 B5, then here is a good news for you, because MuscleNerd has released an update for Redsn0w (RedSn0w 0.9.5b5-5) to fix the said problems!
The latest redsn0w beta should fix any APN or MMS issues that users were seeing. It’s safe to re-run it on an already jailbroken iPhone without restoring…just deselect “Install Cydia” if you do that.
Thus you are able to download the updated version of Redsn0w from the following links according your OS:

If you have not jailbreaken your iPhone or iPod touch you can visit the following links to follow the jailbreaking instructions:
- Jailbreak iOS 4.0 Using Redsn0w 0.9.5 B5 For Windows
- Jailbreak iOS 4.0 on iPhone 3G Or iPod Touch For Mac
That’s great news at least the problem on my iPhone 3G’s MMS will be fix. Thanks for Musclenerd for updating RedSnow. And for the promo of Hostgator, I will think about it. Thanks Abi for the post.