No, you do not need to pay if you don't wish to.
When you have an expired subscription you can still use the program as you like, there are no limitations. In case you do not have a subscription, you can use the CSVI version 1.9 for Joomla 1.5 or version 4 for Joomla 2.5.
Yes, you can.
Support is given on the forum. If you have an active subscription, you can also get support via Skype by adding username csvimproved.
A subscription costs € 59.95 per year. If you are extending your current active subscription you will get a € 10.00 automatic discount.
All prices are excluding tax. Tax will be charged when applicable.
Upgrades are provided free of charge if you have an active subscription.
The program will continue to work however you will no longer have access to upgrades and paid member areas of the site.