is there much changes in patch 1.5

[Peasant Phill]

hello

is playing ETW no expansions patch 1.5 (i think)
i played the game in 1.2 but as the old pc never allowed me to finish the game (white screen of death)
i stopped playing it, now i have a new pc with windows 7 and want to make a new crack at it, i have gotten the impression that patch 1.5 have major changes in the game.

1.5 should make a world of difference to 1.2. Not in the least that it should be playable for you (even with your old PC). It's still not up to it's full potential ( still some bugs) but it's quite enjoyable nontheless.

were can i read about them, and is there any tips for a budding swedish fraction player?

Check the guides forum for any new entries on Sweden. But even if there are no new entries, the older advice is still useful.

and i read in the main forum that there were some free DLC to be downloaded how do i do that from steam?

The 'free' DLC was for those who preordered ETW and didn't get what was promised.