[Scorpious2k]

No, you don't need all the expansions. In fact, you don't need any of them to play.

I assume you were playing version 4.4 and I think tyour problem is that the eqhost.txt file changed. Open it up in your everquest folder and make sure it looks like this:

[Registration Servers]
{
"eqlogin1.eqemulator.net:5999"
}
[Login Servers]
{
"eqlogin1.eqemulator.net:5999"
"eqlogin2.eqemulator.net:5999"
}