Solving the FSX Startup Problem and SP2 English Notification

I have been plagued by the Acceleration pack that is still lingering in a corner of my room, yet I am considering another attempt at installation. 2 problems which I had have been solved, and here they are:

1.) I had the FSX SDK SP1A installed - that was why FSX refused to start up properly. Removing the (frankly unused) SDK stopped that problem

2.) I had no registry key for FSX, so I couldn't install Acceleration. I came to realise this when I tried TweakFS's tool for fixing the FSX registry setup path key. This allowed SP1 to be installed successfully. Flight1's tool was a bit useless however, so I only leave TweakFS's link below. This tool also solves the 'SP2 required the English version of FSX' notification.

Thanks for all those who gave helpful suggestions, but only McMildChild from YouTube solved the 1st problem (I took the second into my own hands). I would be grateful if you subscribed to him, as he is a smashing chap.

TweakFS Registry Utility