Thankyou everyone for your replies. Some of you seem to be contradicting one another however (though this is probably down to my lack of info) so here is a bit of back ground as to what happened and other bits;

Firstly we are playing Eberron so alignment is slightly diffrent to generic 3.5 (e.g they give is Your just al likely to find a Good Red Dragon as you are an evil one).

Secondly the whole party (apart from the warforged) has been turned into true vampires. Which makes the "rest of party rescue" theme fail. Though I have asked my DM if I can create a new character with party members to libberate my current cleric from undeath since I'm affectively playing an NPC.

From your replies I know have the following questions;

1) Do vampires need to feed? Or is dnd as mature and as far away from twighlight as possible.

2) Because I'm in the Eberron setting is it written in stone that upon creation I am Evil?

Many thanks.