The downtime is being caused by our upgrades.
You can find the paid plans at http://www.x10hosting.com/services
The full details are below.
--Paid Static
---Disk Space: 3072 MB (3 GB)
---Transfer: 102400 MB (100 GB)
---FTP Accounts: 10
---MySQL Databases: 10
---Sub-domains: 10
---Parked...