Did you load the Special Edition matrices yet? They can be found in the Vienna Instruments player under MATRIX. If you load one of these matrices, the samples should load. If you don't see any matrices there, you don't have the library content installed or assigned in the Directory Manager. The library content of the Special Edition volume 1 can be downloaded here:
http://www.vsl.co.at/en/68/2219/2231/1904.htm
We have lots of different Instrument collections, bundles and Single instruments. They all have different prices, so I can't answer your question about the cost in general. The prices can be found on the product pages.
Instrument collections:
http://www.vsl.co.at/en/211/442/607.vsl
Single instruments:
http://www.vsl.co.at/en/211/496/802/951.vsl
I hope this answers your questions.
Vienna Symphonic Library