Wrong.
Bush could've sued the parody site's owner for cybersquating or copyright infringement or libel. But that's not what he did.
Instead, Bush filed a complaint with the FEC claiming that the site's owner violated campaign laws by failing to register as a PAC and that the site's fair market value puts it over the $1,000 threshold that defines a PAC under election law.
When the FEC (rightly) told Bush to go pound sand, Bush called press conference and uttered his infamous words of praise for the 1st Amendment ("There ought to be limits to freedom").
But, Bush never pursued anything beyond the cease and desist letter from his lawyer, the FEC complaint and this press conference.
In fact, after this action took place, Bush registered hundreds of domains, then tried to hijack the parody site's domain claiming that he'd registered it in the summer of 1998. Internic records show that the site's owner had the domain two months before Bush started registering these new domains, such as bushbites.com and bushsux.org.
Strangely, I can find no full text of a quote beyond these words and nearly all of those sites that castigate him for them are leftist...
The PAC amount was $250 according to the article I read. I'll have to try your link at home... firewall at work doesn't like it.
Thanks.