Membership Plugin and new blog creation

I am running into a bit of an issue...

I have set up a page for people registering with my sign and included the [subscriptionform] tag. However, this does not include the blog creation form... no big deal because I don't necessary want it there anyway.

However, when a logged in user goes to the 'My Sites' tab in their dashboard to create a new site, the link gets directed to wp-signup.php. This is a problem because they are already registered and logged in so the link just goes to the homepage.

Any suggestions on what I may be able to do here?

I am running the current versions of multisite and BP.

Thanks in advance.

Jim