|"The Windows Word 2007 and Publisher etc etc was set up as a trail and now the trial has run out it says that I must buy it now. "|
You do understand what trial means don't you?
"I thought that it already had come with the computer package."
It did as a trial version and it would have been clearly stated, you had ample opportunity to pay the license fee.
"Is there anyway I can resolve this without having to buy the program?"
"Also the DVD regional code is no longer changeable"
All dvd roms are limited to the number of times the region can be changed, I believe it's a total of 5, so the last region change remains final, so if you are in the US and last disk you play has a region code for Australia (Region 4) all it will now play is region 4 disks.
"is there anyway i can fix this myself without sending it back to the manufacturer?"
NO! and you can't send it back, even if it's still under warranty, it doesn't cover mistakes made by you, put simply it's not a warranty issue, it's a user issue.
You will need to pay for a new one if it no longer works.