No. MySQL functionality is not enough for needs of the system. MySQL 4.x will possibly be supported, but not MySQL 3.x.
In the current system version — can not. This functionality will be implemented in one of nearest future versions.
In current system version — no. This functionality will be implemented in one of nearest future versions.
In current system version — no. This will be possible in one of nearest future versions. English only can be used for a while.
Upgrade to the newer system version carrying slight improvements and bugfixes doesn't require any special payments. Upgrade to the newer system version carrying more wide functionality requires payment equal to the difference of the prices of two versions, taking into account all discounts which are in force.
Not supported. The supported is not planned. Windows 9x doesn't provide guaranteed authorization and security facilities. Possibly the support of Windows 9x will be in one of future versions if somebody would additionaly pay for this support.
Yes, with a condition of manual installation. At first, there must be JRE 1.3.0 or higher and one of suitable databases installed.