I was asked to do a wedding cake for a vegetarian couple. They want a strawberry cake or a white cake with strawberry filling on it and then the CATCH, they asked me not to use gelatine it is made out of animal tissue and bones. All recipes I have found contain gelatine.

Well, I did an Internet search and found out that these:

Agar-Agar /Guar gum/ Carrageen / Arrowroot

are vegetarian substitutes for gelatine.

Guess my question is if any of you ever worked with any of these? if so, any words of advise??

or perhaps any strawberry cake recipe that doesn't call for gelatine?

It's gelatin not gelatinE!
sorry about that.

Check your PM box..

Can you use strawberry jam instead of whatever you are using for a filling? I don't know what you would use gelatin for in a strawberry cake, but I've never made one.

agar agar is quite popular here where I live. it's cheap, that's why it's popular. we just soak it in water, put coconut milk in a sauce pan, add sugar, and when it starts to boil put the soaked agar agar in and stir until it dissolves. pour them in little plastic cups and viola! delicious gelatine snacks