Hi,
I don't know anything about x10Hosting but that error makes me think the hosting is on Linux/Mono?
If that is so then you need to use a special build for Mono, we have a package "pgsqlreleasefilesformono", you can then replace the data dlls with the ones for MySql from the MySql Data layer download.
Any problems you find are most likely to be Mono bugs, you may want to review our Linux/Mono Forums.
Hope it helps,
Joe