Need firmware for WD Caviar SE WD2500JD

Basically i just benchmarked the drive on userbenchmark.com and i noticed my drive has a different firmware compared to everyone else , mine seems to be older

This is my score here Asus M5A78L-M/USB3 Performance Results - UserBenchmark
every one else scores have newer firmware (cant link as new users can only post 2 links

as you can see people seem to have newer firmwares than me, and yeah im running the drive in AHCI or so my bios says it is

anyway i went to this web page and every time i click on the download link, it says the page has been removed
https://support.wdc.com/product.aspx?ID=603&lang=en

anyone here know where i can get an upto date firmware

i have set my windows 10 to have the drive spinning 24/7
would u guys advise i do that or shall i let the drive turn off
the drive is getting old now so i need to keep it running untill i replace it with something else

i cant see any benchmarks for the WD GOLD drives on this website

Also how much longer do you think my drive can last?

my seek times can usualy hit around 2000-5000 MS