Part 1 and part 2 of the full client has been downloaded... What am I supposed to do now? I tried to start the part 1 file but it says there is an error..

The link for the manual patch 44-46 stilll doesn't work... But I am downloading the full client... I just realised that the Part 2 file has changed... What am I supposed to do with it?
Thx^^

~Horrorful

I am trying to download the full client... but it keeps stopping halfway... I have been retrying for the past 2 days... The 44-46 patch does not work. When i click the link, A white page will appear with strange writings...