No internet access for vlan devices

Hey folks, 
I'm new to cisco and have only recently started study for my ccna. In preperation for this i've gotten my hands on a cisco emi 3550-48 port switch so i can play and test some scenario's. 
Now, I've setup a couple of vlans (200,201 and 202) and i've assigned them to fa0/3, 0/5 a0/7 respectively. i suppose it's irrelevant which ports are assign, they are just the ports i've assigned while typing this. 
I know the cisco forums are full of people saying the intervlan routing isnt working and it just turns out to be the static route on the router in the end but i have set all that up and i can not get internet access on my vlan networks. The wierd thing is the switch itself can ping the internet no problem. 
Here is my setup : 
I've assigned ip addresses as follows :
vlan 200 - 10.10.200.254/24
vlan 201 - 10.10.201.254/24
vlan 202 - 10.10.202.254/24
I then enabled intervlan routing by issueing "IP ROUTING"
At this point I configured the VDSL modem/router (zyxel F1000) on IP Address 192.168.1.2/30 and I configured interface fa0/1 with the following commands : 
interface fa0/1
no switchport
ip address 192.168.1.1 255.255.255.252 
no shutdown
I then set the default route using : 
ip route 0.0.0.0 0.0.0.0 192.168.1.2
Finally I configured three static route's on my Zyxel F1000 modem/router to send traffic back to my three vlans using the gateway 192.168.1.1
As i said above, If I plug into fa 0/3 (vlan 200) and lets say I give myself an ip address of 10.10.200.20, 255.255.255.0 and gateway 10.10.200.254. I can ping the othe vlns and devices on the other vlans no problem but bot for love nor money can i get onto the internet. For clarifications sake my dns is set to 8.8.8.8
Stranger still is the fact that the switch can ping hostnames and ips on the internet no problem. Has anyone got any ideas what could possibly be wrong?? I'm completely stumped. 
Regards, 
Thomas Quigley

Hey guys,
Thanks for the speedy replies. I have been trying this for about 2 weeks now and last night after posting this message to the cisco forums I got my hands on an old Sonicwall router. I decided to test the connection using this as I suspected that Zyxel router is buggy. 
I setup a PPPoE connection on the sonicwall and set that up as my default route matching exactly the ip settings listed above and it worked immediately. 
I knew the setup I had ran above was right it was just tormenting me that it wouldn't work. Turns out its the piece of crap Zyxek VDSL modem. 
Thanks for taking the time to read my post and offer advice. 
Cheers, 
TQ

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