A little more enthusiasm in front of the newbs next time would be nice.

Editing the table file for relevant ships will accomplish your goal (Hit points). You can do a specific class (the general entry), OR if you are adding a ship that doesn't exist yet you need to make a NEW entry that has a copy of the old table entry, but with your changed stats if you don't want to just have all ,say, Orions have increased hit points.
At this time there is no EASY way to change the hit points of a specific ship within a class on the fly. You can damage or repair but not change to a specific numeric value (last that I knew of) via FRED.
For a SIMPLE name change as they have no hullplates, you can simply change the names in FRED, this will show up as you target them (ie GTD Whatever) but the Class underneath will remain he same, so no need for a new table entry.
I hope that helps you out a little. Welcome aboard!
