Archibald replaced Jackie McNamara in February when the former Celtic man was lured to Tannadice to take over as the new United manager.
But a bitter row followed as Thistle threatened legal action over compensation for the loss of their manager while McNamara also consulted his lawyers after claiming he was due bonus payments for his initial work in steering the Jags towards the First Division title.
As fate would have it, the clubs were paired together on the opening day of the new season.
However, peace has now been brokered after a settlement was reached by both parties and Archibald is just glad the issue will not now overshadow Partick's big night as they kick off the Scottish Premiership campaign.
He said: "You couldn't write the script with Jackie coming back for the first game. It adds a bit of spice to the fixture for the fans and the media but I'm sure we will all enjoy it.
"But the fact it is Jackie coming back hasn't changed our thinking. We have prepared as we did for most of the games at the end of last season.
"The players are a bit fed up being asked questions about it and I just hope the focus is on them and what goes on on the pitch.
"We're glad that [the threat of legal action] has been dealt with. It's water under the bridge and now we can move on. We didn't want to go into this game with all that stuff hanging over us. Hopefully Friday night can be about the players performing."
Meanwhile, new Dundee United signing Nadir Ciftci hopes his impressive strike against Wigan is just the beginning of plenty of goals for the club.
The 21-year-old joined the Tangerines on a two-year deal last week and opened his account in style with the only goal in a pre-season friendly win at the DW Stadium on Saturday.
And Ciftci - who can play as a striker or a winger - was also keen to pay tribute to his new team-mates as they prepare to get their campaign under way.
He said: "I hope I can have many more of these goals but the most important thing is that we won.
"We did it all together and we also kept a clean sheet - that's the most important thing and hopefully we can see more of them.
"I can't wait for the season to start now. We had a good two weeks in Spain and Germany and I think the lads are all ready for the start of the season."
Ciftci previously had a spell at Portsmouth as a teenager.
And he is thrilled to be back in the UK after former Celtic striker Pierre van Hooijdonk helped engineer the move to Tayside following the termination of his contract at NAC Breda.
He said: "That was the most important thing for me this season, to be back in Britain.
"I had two more years in Holland. But I spoke to Pierre, who is not my agent but who was helping me with everything, and I told him I wanted to go back to Britain.
"He helped me a lot and I'm really happy I'm back. It suits me best and I feel happy. I feel at home here."