Sell all the erupters you have and buy pure BTC with them. You'll make more money that way and wont waste your electricity. I know it's not what you want to hear but it's good advice. I bought a bunch of erupters the other month, got them hashing away and realised if i kept them all running 24/7 i'd have enough BTC to buy myself a snickers at the end of the year. So I sold them, bought BTC and within a few years will be a lot better off for it.
Pointless post. Good effort.
To the OP, you need to set up Slush's proxy on a PC. Set up the Blade to mine to the IP address of the PC, putting in the worker username and password in the appropriate boxes in the Blade's web page. I'm ot sure what the linksys router has anything to do with anything - if your PC can get on the internet, that's all you need to worry about.
