OK so you tried installing the Database Accelerator on your PC?
It will work on Vista but it is a bit more difficult. If you have a server environment that is what I would recommend. However you can install it on Vista. You need to make sure you install IIS. Then .Net. Then SQLExpress, Then DBXL.
From a testing standpoint it does not matter too much where you have it. Obviously if it is on your computer that might make it difficult to test from other people's computers.
Once you have a place to put your data then you can have a form which interacts with it.
If you would like to set up a time to see a demo or help you out send me an email by clicking on my name.