Just recently returned to this coin and to my surprise, it was still somewhat active.
I'm in no way an expert in understanding how most of the things under the hood works, and I found it extremely difficult to actually get my wallet back to sync. Tried the bootstrap.dat but that would take weeks before it caught up. Re-syncing from scratch would take even longer.
After a while, I then came across the site CryptoChainer - a site that has blockchains for a vast variety of coins, and to my luck, they had a recent snapshot for the Mintcoin blockchain as well. Wohoo ... now I only needed to figure out how to actually use it. Turned out it was easier that I dared hope for.
So in case others want to "re-enter" this coin and find themselves in the same situation as me, here's a really quick step by step guide for Windows:
1: First off, download (and install) the wallet from the
http://www.mintcoinofficial.com/2: Start the wallet/program
3: Exit the wallet/program again (don't know if this start/stop is needed, but that's how I did it anyways)
4: Open the folder C:\Users\*YOURNAME*\AppData\Roaming\MintCoin\
5: Delete all files and folders in this dir except wallet.dat (if this wallet.dat is your backed up wallet)
6: Go to
http://cryptochainer.com/dir/?page_id=881 and locate the MintCoin blockchain and click the "MintCoin blockchain"-button to start downloading the blockchain
7: Unzip the file in the MintCoin-folder (from step 4)
8: Copy your wallet.dat into the MintCoin-folder (from step 4)
9: Start the MintCoin application
The wallet will now take a while to lauch while writing something down the lines of "Rescanning" or something like that. When it launches, you'll be a day or two behind at most, and that should be fairly fast to sync up.
So yeah - don't know if this helps anyone, but I sure would have wanted exactly this help from some forum, so at least it's here now. Who knows if I'll be needing it myself in a couple of years when I forgot all about it again
Cheers
Punqtured