Hi again, thanks you are right, I should contact people. Unfortunately my PhD is being done in a very tiny, isolated outpost wit limited resources, hence the lack of immediate expertise. I am sitting sdown with my supervisor tomorrow but I think he has higher expectations of my output at this stage than is the reality! I ned to start contacting people but feel as though I don't even know what questions to ask or that I may sound a bit"thick" even - all barriers that i am putting up I guess. thanks again.