Ok this is just a quick guide.
if you want to stay at Patch 2.4.3 follow this guide completely.
when updating your compile files instead of picking SVN Update
you go to TortoiseSVN > Update Revision
when in Update to Revision click the "revision" bubble and type in 1568
amd that'll change the files to 2.4.3 now go back to the previsous guide and just follow it
GOOD LUCK
and may the power of christ compel you!
- Kanng XD