Hey Creedo!
PiceCraft is the name of the Server. It just got modded to use TekKit 3.0.3, which is a grouping of MANY Minecraft Mods wrapped up so they play nice together. Because of this, TekKit requires you use their launcher, not the vanilla minecraft launcher.
Go Here to get the Tekkit Launcher: http://www.technicpack.net/launcher/
Once installed, you will need to select "TEKKIT" inside the launcher (Top Left of the screen). Then, click 'Options', and select 'Manual Build'. Then select Mod Pack Build "3.0.3 / 1.2.5 Latest". OK, then enter your MineCraft Login, and Password and hit Login.
In the game, for whatever reason, Single Player cheat-mode is enabled by default. Click Options and Disable the NEI to remove the clutter.
SERVER: www.80HD.net
A live map of the server is at: http://www.80hd.net:8123
The server plays just like MineCraft, the mods just add to it.
USEFUL TOOLS:
MineCraft Wiki: http://www.minecraftwiki.net/wiki/Minecraft_Wiki
TekKit Wiki: http://thetekkit.wikia.com/wiki/The_Tekkit_Wiki
PiceCraft WebSite: http://minecraft.eightyhd.com/