Well, a few problems here:
For selecting folders: (assuming you are using drive D
Click "Save to folder" button.
Should open up a windows where you can select your folder, if nothing shows up, perhaps you don't have any folders in the root directory, if this is the case click on the second folder icon from the right at the top of this window. This will allow you to create a new folder to save to.
As far as the Hprint error:
Not too sure, however, I believe it uses your print drivers of your attached printer to determine formatting, so if you don't have a printer attached, it might not work properly. I'm just guessing here, throwing out ideas...
Hoster security relies on your ethernet card (Network adapter), so unless you transfer your card from one machine to another you will not be able to use it on multiple machines. If you use a PCMCIA card or a USB network adapter, it shouldn't be too much trouble switching from one computer to another. However if when you registered it, you selected an internal network card, you will have problems as you will have to switch the internal card each time you want to use a different machine.
As far as normilization/compressor/limiter, I have never used it, as I'm always adjusting the mixer settings anyway from singer to singer, so to adjust the volume doesn't matter to me too much, however, If you set the settings to the defaults listed in the manual it should give good results I imagine.
If you are using an EXTERNAL compressor/limiter for your singers, you could run your entire mix throught it between you mixer and amp, and it should give similar results. This way you can just import your songs and have the compressor/limitered (internal to hoster) disabled. (Which will save time when importing songs)
MTU is working on the database and a process to submit database changes on the web, so that will be forthcoming...
Hope this helps out...
Flip (a.k.a. Mike)