How can i get old intros?

I dont know which intro you want to change to old one, but here's simply guide:
open media.pk2 with extractor, extract script/intro files, open egypt.txt (if your client with alex intro), then delete the whole text in it and paste this:

Code:

[CAMERA]

0.0 S_CameraInsert 0.0 188 95 1713.326294 56.223167 484.136963f -0.100976 -7.977246 0.000000 1
0.0 S_CameraInsert 5.0 188 95 1632.310669 56.223167 154.475800f -0.100976 -7.156814 0.000000 1
0.0 S_CameraInsert 10.0 188 95 1277.725586 56.223167 -172.118973f -0.100976 -6.878407 0.000000 1
0.0 S_CameraInsert 15.0 188 95 957.477112 56.223167 -335.041473f -0.100976 -6.606540 0.000000 1
0.0 S_CameraInsert 20.0 188 95 661.755981 56.223167 -396.466797f -0.100976 -6.327650 0.000000 1
0.0 S_CameraInsert 25.0 188 95 281.348267 56.223167 -342.004303f -0.100976 -5.776438 0.000000 1
0.0 S_CameraInsert 30.0 188 95 414.610321 13.820610 -2.251346f 0.209174 -5.754076 0.000000 1
0.0 S_CameraInsert 35.0 188 95 438.555145 8.548343 63.386612f -0.482870 -6.027934 0.000000 1

[END]

then save txt and import files on your media with pk2editor.