I also have not received an answer via their support ticket system. I used their automated system and it did not work. The forum and site are up now, I was unable to get any assistance from the owner for getting my reg key. The developer has allowed the site to come and go it is currently up and you can download the software, though there are reports in the forum that the new serial numbers no longer work. You also need to install the pccplugin which you have hopefully saved on a thumb drive somewhere. If you upgraded your copy of make the cut past MTC 4.1.0 it can’t be hacked to work.
Eventually the software was locked down and the code needed to make the software able to work with the cricut was locked out. Googling the company shows several lawsuits. Make the Cut was tied up in court for years. Well that was fun, until Provocraft decided they didn’t want third party software controlling their machines. I was able to cut anything I wanted and items of my own designs.
Way back in 2009 or even further back I picked up a copy of Make the Cut a fabulous software that let me control my Cricut craft cutter.