NXS: Nexus Management - Global data security and storage

Folks, I posted on 7/12 (No 1267) hoping for some assistane from you experts although I incorrectly quoted stock as 30,000 rather than 300,000 at £0.00925 and got no feedback. Bought at the start of June 2006.
My contract note states the mark up is 0.425p per share - whatever that means -can you assist in an explanation!
At this price, and volume, am I performing reasonably well and should I hold? If a hold what would a reasonable dealing (selling) price be for me?
Thanking you in advance of a reply of assistance.
Before anyone states the obvious I am new to this type of dealing but I find your site and comments, including honesty, very interesting.