I wish I could help you. I don't know why it wants to install those, since the WebPI version of GSP uses SQL CE and shouldn't even need them.
You could try searching the internet for others with a similar error message. Ultimately, this is an issue installing a SQL Server component and not directly related to GSP. One possibility is to look at the
WAG forum.
If you still can't get it, try installing the stand-alone version, which some people find easier to use anyway.
Roger Martin
Creator and Lead Developer of Gallery Server Pro