"Could there be a Confederate/German alliance by WW 1? If so how would the Confederacy contribute to Germany in WW 1 such as troops or weapons or thier navy? If WW 1 went the same way what limatations would be put on Germany and the Confederacy as of a treaty?"
There could be a Confederate/German Alliance, but thats too Turtledovian I think to consider realist, without other modifications to the TL. First off, (why does it always appear that I'm repeating myself) the Confederates will have to transport any troops or weapons past the Anglo-French blockade. They will be stopped. The Allies are not going to permit supplies to reach Germany. If the Confederacy contributed their navy then they will be at war with the Allies. Since its unlikely that the Confederate Navy will be any sort of threat to the Royal Navy, I don't see the Confederates being able to do much of anything.
If the Confederacy had entered the war upon Germany's side, and the war gone the same then one would expect the peace treaty to be just as harst as in OTL. With the United States involved, probably from whenever the South declared war, its likely that the South will experience territorial loss also.
"The cruisers ordered would be delivered - other nations only seized the ones they seized OTL because the CSA was no longer either willing to pay or a good gamble."
I was thinking of the Laird Rams when I wrote this, which were seized and bought by the Royal Navy to prevent any diplomatic problems.
I would think, much like modernizing Japan, that by the 1910s the Confederacy would have the infrastructure and industrial capability to build its own ships, or order parts aboard and assembly them at home.
The Confederate Navy of the 1890s, may be, a few coastal battleships and predominately torpedo boats. Armoured cruisers will be what is used to show the flag in foreign ports. The rise of the Jeune Ecole school of thought played havock in all the navy's of the world, but I think the Confederate Navy would closely mirror the United States'.