Normally there are 5 springs... and 5 claws on the trem claw... and 5 holes on the trem block... I'm assuming that you only have 3 springs........ since you said that they're installed straight across and the trem is sticking up too far... you can do it a few different ways. Get 2 more trem springs and install them as well... this will give the most trem resistance... or use the 3 you have in a different pattern... like this...

Say these numbers represent the claws on the trem claw if your guitar is laying face down on your lap with the neck to the left...

1
2
3
4
5

And these represent the holes in the trem block...

1
2
3
4
5

Link the springs like this... Listing the trem block numbers first and the trem claw number second...

1 > 2
2
3 > 3
4
5 > 4

This will give you more resistance by putting more load on the springs... if this doesn't give you the necessary amount of load you'll need to buy 2 more springs... or screw the trem claw into the body some more to increase the distance from the block to the claw.