I have just started a new game with 4 characters:
1. Half Orc barbarian
2. Human Battlegaurd of Tempus
3. Moon Elf Scorcerer
4. Sheild dwarf fighter

Any comments on muticlassing??

Your characters are good like they are, you don't really need to multiclass...

But if you really want to to it you could give your shield dwarf some thief levels, and maybe some fighter levels to your priest.

Since you have 2 melle fighters you can give one of them some druid levels (enough for him to cast static charge which i believe is level 4)

Cool thanx that waa what i wanting to know was which one to multiclass theif level

Who has the highest dexterity?

Sheild Dwarf Fighter
Str: 18
Dex: 18
Con: 17
Int: 8
Wis: 7
Cha: 8

Half Orc barbarian
Str: 20
Dex: 18
Con: 15
Int: 7
Wis: 7
Cha: 7

Wild Elf Sorcerer
Str: 10
Dex: 18
Con: 10
Int: 10
Wis: 10
Cha: 18

Aasimir Battledgaurd of Tempus
Str: 17
Dex: 17
Con: 10
Int: 7
Wis: 20
Cha: 12

Erm... you realise you'll be missing out on ALOT of plate mails and such. And an uneven score is worth an even score less. And did you cheat that last Battleguard or is it a spelling error?
Anyways, the barb and sorc are best bets for a thief. Note that a barb loses some things(mainly speed) when wearing heavy armor.

How am I losing out on plate mails. And no i didnt cheat on the battlegaurd. Are my numbers to uneven????

The total of ability scores for the battleguard is way too high.... (should be 80 for an aasimar... )
Your fighter and cleric can wear plate mails... if you give the barbarian the heavy armor feat he can wear them too without any penalties other than losing speed (which IMO is good because I hate it when he's too fast for other party members and wanders off alone)

ohok i didnt use any cheats for the battleguard tho i dont even know any