Welcome to V-Flyer
As tonty says the data only goes back to May. This is mainly because around that time V-Flyer moved from another platform to the current one and some of the earlier data may not have been moved. Having said that tonty is right in saying it seems up to date. The last entry is for July 16 and this is true of all flights not just VS075.
If you want more up to date information about future flights, and by that I mean flights within the next 12-24 hours look at Status Updates in the Toolbox and the airplane icon at the bottom left hand side of the page.
All information about flights comes as a direct feed from Virgin Atlantic and is as accurate as can be