Using photonexus theme and need advice

I am new to wordpress and have set up photonexus as my theme, housed within my own web domain. I am not very tech with all of this and I am learning a great deal as I go. So far I have hand no problems adding posts but just today I added what I thought was over a 100 new posts and even though wordpress informed me that they had been published, when I went to check they are not appearing anywhere. In fact the post area has no record of the last two hours of my life! Can anyone suggest anything which might help me recover these posts or tell me why I can not post without using a title?
I have checked the forums already but can not see anything specific to my needs, all advice would be much appreciated.
Cheers
Leo