Help G1 Not Updating


Ok, I'm hoping someone can help me out here.

Being impatient, I HAD to download the big "cupcake" update when it went public around May of this year, instead of waiting the extra couple of weeks for T-Mobile to send the update down to me.

Now, ever since, I have not received any additional updates, yet friends of mine have received more since the cupcake update.

Basically, I'm assuming I need to update my phone manually again, but am unsure to which version or even if I'll be able to do this.

I'm sure someone else has run into this problem, but a quick search isn't yielding very good results.

Any ideas on how to fix this problem and get on the correct software version?