i just payed and downloaded the program not knowing that i required java so i, when and downloaded that after still couldn't open it. deleted the program and re downloaded it (not happy about this) it still isnt working the program comes up with this error

Sorry, but there was an exception while launching the application:
java.io.FileNotFoundException: C:\Users\alex's\AppData\Local\Temp\Temp3_TLXP15_5.zip\Resources\gui_images.wwz (The system cannot find the path specified)
at java.util.zip.ZipFile.open(Native Method)
at java.util.zip.ZipFile.<init>(Unknown Source)
at java.util.zip.ZipFile.<init>(Unknown Source)
at java.util.zip.ZipFile.<init>(Unknown Source)
at com.wwg.planner.ZipSource.init(ZipSource.java:44)
at com.wwg.planner.ZipSource.<init>(ZipSource.java:25)
at com.wwg.planner.WWE.loadResources(WWE.java:5022)
at com.wwg.planner.WWE.<init>(WWE.java:403)
at com.wwg.planner.WWE$1.run(WWE.java:225)
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$500(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)

any help will be appreciated

It is looking like you're in the same boat as the last person who posted about issues on here. You need to extract the .zip file completely and then run the TerrainlinX_Planner.jar file to launch it. Running it from within the .zip file will generate errors similar to what you got.

And, for the record, the store page for the planner has the following information on it in bright yellow letters:
ATTENTION PC & Mac Users: This program requires that the Java platform is installed on your computer. Grab it here Java (Free)

I may well update the TLX planner page to add that the zip should be unzipped in order for the program to properly work!
I think it's at least the 5th time that someone is having trouble because he tries to use the program from within the zip...