Have you booted the PTVnet cd first and then put in the cake cd when asked?

the USB200m is a USB 2.0 device, so usb 2.0 driver is the one needed.

How do you have it connected to your network, wired in or wireless through a  bridge?

There are 3 ways of telling if it's a version 1 or v2.  The v1 adapter will just say usb200m.  The v2 adapters are also shorter than the v1 adapters (I know that may not help if you only have 1 adapter, but the v2's are the size as usb100m (usb 1.1 dongles). If you bought the adapter recently, it's a v2 or v2.1.

So, it sounds like you have the correct adapter, but might have other problems.  It could be a bad network cable.  Even if it worked before, sometimes when you move cables that have been in service for a long time, they get use to being in 1 position and then they break when you hook them back up.  It might not be a bad idea to replace the ethernet cable.

Also, ensure it's plugged into your network prior to powering it on.  You could also reboot your router, that helps as well.  AngryIP scanner also is pretty helpful in finding troublesome DHCP devices too. 

The only thing I see weird with your settings is that unless you changed the settings on your linksys router, it should be 192.168.1.x for the ip and not 192.168.0.x

I don't see where he indicated it was a Linksys router. D-Link routers use 192.168.0.x as the default subnet.

I've seen problems with people not being able to access TWP, telnet, etc. with PTVnet; simply reloading only PTVnet (not InstantCake) can sometimes fix the issue. 

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HR10-250, Samsung SIR-S4120R, SIR-S4080R, 2 Philips DSR704s (one connected to a Slingbox A/V). One box used the "Zipper"; rest used PTVnet to enable networking features.