SoapUI 3.6.1 request with special charaters with urlencode

Hi,

I am using SOAPUI 3.6.1 and I have the following http request :

http://localhost:9000/advertising/adnet ... es/hBanner?
ctgen=Comedy Romance&ctgen=Action/Adventure&ctgen=comedy-drama&ctgen=Science/Technology&ctgen=Arts/Literature&ctgen=Hobbies/Crafts&ctgen=Home/Garden&ctgen=Health/Fitness&ctgen=Music/Musical&ctgen=Mystery/Suspense

So in the above request some request params have special characters as like space(" "), "/" and "&" .

SOAPUI just strips off the request completely even after I encode it as:
http://localhost:9000/advertising/adnet ... es/hBanner?
ctgen=Comedy%20Romance&ctgen=Action%2FAdventure&ctgen=comedy-drama&ctgen=Science%2FTechnology&ctgen=Arts%2FLiterature&ctgen=Hobbies%2FCrafts&ctgen=Home%2FGarden&ctgen=Health%2FFitness&ctgen=Music%2FMusical&ctgen=Mystery+%26+Suspense

Still shows the same behavior.

Kindly help, with how to test for such URLS?
Is there any workaround.

Thanks,
Jyotsna