Update your java man, Thats hwta i had to do.
(thats if you dont have the latest version :s)

I have the latest java

-CREAMY- wrote I have the latest java

Delete and re-install the rsps and hope it works
Or check if there is an alternative run.bat :s

I've reinstalled java and the rsps and nothing has worked, the other two run.bats - 64 version and another one don't work and give me errors in cmd.

Aghhh

attempt the 64 bit, see what it does...

Say wrote attempt the 64 bit, see what it does...

I did but it gives me an error in the command prompt.

The system cannot find the path specified.
Exception in thread "main" java.lang.UnsupportedClassVersionError: Gui : Unsuppo
rted major.minor version 51.0
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClassCond(Unknown Source)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.access$000(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
Could not find the main class: Gui. Program will exit.
Press any key to continue . . .

Hmm. What RSPS? :/

It's called silentscape. Not sure what it's based on

If i was you, i'd give up
or go on the forums and ask if you can resolve it