Gentlemen, I am sorry that I have not had time to INFORM you of our policy. We are trying to get a Blog, Facebook and Twitter up and running so we can keep in touch better.
Now, here are some points, that from your posts, you do not understand:
1. You DO NOT have to pay for bug repair versions. Our new Registration system has many important positive features, albeit it does enforce our 12-month upgrade policy where in the past we waited, and waited, and waited for our web master to upgrade our scripts to enforce 12-months. I allowed you to have free upgrades. Consider it a gift, that now has stopped.
2. When you buy an upgrade, you don't get an "Upgrade RegCode" any more.
3. Your OLD OLD OLD RegCode can now install the latest 4.30. Now that was a real trick!
4. You no longer need to hold onto your "Full Hoster RegCode" to first install and then use your Upgrade RegCode. Also, you are no longer required to have a "prior version" installed in order to install an Upgrade.
5. We now have a "Releases Table" at our web site. I back date all releases that I feel are mainly bug fixes so if you can install the original "main" release of new features, you CAN install the following versions with the bug fixes. I am extremely liberal on the back dating. For example:
Hoster 4.20 released 2010-03-02
Hoster 4.21 released 2010-05-27 and installs free if you install 4.21
Hoster 4.22 released 2010-06-24 and installs free if you install 4.21
The fixes in 4.22 alone have been worked on for years, costing MTU $$,$$$ tens of thousands.
Think about it... would YOU give it away FREE as we are doing if it cost you that?
Hoster 4.07 released 2009-02-23
Hoster 4.08 released 2009-02-26 and installs free if you install 4.07
Hoster 4.09 released 2009-05-26 and installs free if you install 4.07
Hoster 4.09a released 2009-05-28 and installs free if you install 4.07
Hoster 4.09b released 2009-06-03 and installs free if you install 4.07
Hoster 4.09c released 2009-06-09 and installs free if you install 4.07
Hoster 4.09d released 2009-06-23 and installs free if you install 4.07
Hoster 4.10 released 2009-09-23 (with MASSIVE NEW features) and installs free if you install 4.07
Hoster 3.316 released 2007-03-08
Hoster 3.317 released 2007-11-08 and installs free if you install 3.316
Hoster 3.318 released 2007-12-29 and installs free if you install 3.316
Hoster 3.319 released 2008-02-20 and installs free if you install 3.316
Hoster 3.320 released 2008-02-28 and installs free if you install 3.316
Hoster 3.321 released 2008-03-11 and installs free if you install 3.316
Hoster 3.321a released 2008-05-16 and installs free if you install 3.316
We also have added FREE Live Chat to our web site that you can instantly chat with either Sales or Support. They are on-line Mon-Fri, most of the time from 9:30AM to 5:00PM. It has all but stopped our phones from ringing, which used to be a constant stream all day long. How many companies give you free, quality support for YEARS?
Every company we deal with charges us upwards of $2,500 EVERY YEAR for the right to use their software. With some we can't even run the version we paid for last year, or the year before if we don't cough up BIG BUCKS. I doubt their development costs are much higher than ours, but we only charge you from $9.99 to $69.99 for 12-months of upgrades and FREE support.
We DO NOT require you to order every 12 months. If you don't like what you see, don't upgrade. It's your choice. Unlike OUR software vendors, we don't discontinue your right to run our software.
Maybe you were not aware that we update our Import (bucket.mdb) database monthly. Our Hoster Upgrade fee includes this monthly database upgrade. If you watch our Download Site (click our "Support" navigation link,then the "Download" button), you will see around the first of each month that the number of new track records increases between 5,000 up to 8,000. All you need to do is download the current Hoster version and install it to have the updated database.
We have just updated our software tool we use to add new DiscID-Tracks to the Import Database. We hope it will now allow us to spend the same time, but add over 10,000 new tracks a month. We are excited about this.
The Database upgrade is included with your Hoster subscription. 
I hope this helps you understand what we have done, and how it is designed to benefit you.