Hart told the club's official website: "It's good to know we can bring some players in and although there's no news on that front just yet, we are trying."
Hart could well renew his interest in Leeds striker Michael Bridges following his return to fitness. With Leeds likely to go into administration as early as next week, they would be keen to offload the Geordie forward with Forest likely to contribute towards half of his wages.
Hart secured the services of Darren Huckerby around this time last season which gave Forest a new lease of life for the final half of the campaign. Hopefully a new face can do the trick again.
Meanwhile, Hart recieved another boost this week with the news that Belgian left-back Davy Oyen has returned to training.
The ex-Anderlecht defender has been out for around four months with stomach and knee problems.
Hart told the official site: "It's good to see Davy back on the training ground but he needs to play a few reserve games before he can be considered for the first team."
Hart has been left with only Gregor Robertson as a natural left-back with centre-backs Chris Doig and Wes Morgan also filling-in when desperate.