Wait, i reread your post pnak, and it seems you want the missiles coming out sideways... is that right? That's not realy a VLS, well VLS doesnt realy make sens in space, but the basic principle that would be carried over would be a bank of missile launchers that isnt aimed, but instead relies on the homing mechanism of the missiles. The original problem with this was that the missiles would come out at an angle, not verticly.
What you seem to be proposing is somwhat more dificult.. i think...
Well, I was thinking about a pilotable (fighter-style) ship having a non-forward missile bank, that would still be locked onto targets normally. I figured this would require a VLS-style system (where the missiles are ejected somehow and then aligned and 'launched'), or an R-73 style where they're just fired normally but given extremely high manuveur in the first few seconds.
I guess hitting oneself would be a potential problem, say if the launcher ejected missiles (linearly, or sideways or whatever) which rotated to track the target before firing the engine... if the launch platform was turning heavily and the missiles best line was THROUGH the launch platform. I guess they'd have to be ejected a fair distance to be safe.
I think what you're suggesting is the ability to fire missiles that can emerge from the launching model at any angle, so they could fire 'upwards' or 'backwards' to always launch toward the target?
I'm doing a poor job of explaining, so I'll use the glory of ASCII art to illustrate what I mean. '***' is the deadly missile fighter, T is the target and dots are the path of the missile. The main engine fires at *.
* \ . .
| . . . . . .
| . . . . \ . .
*** T, *** T, *** T, *** T, *** T, *** T, *** <>